microlite (from the article "pyrochlore") ...brown to black, glassy octahedral crystals and irregular masses. Tantalum atoms replace niobium atoms in ...
microlith (from the article "China") ...million years ago) manifest considerable regional and temporal diversity. Upper Paleolithic sites are numerous in ...
micromere (from the article "annelid") In annelids, the first four cells (blastomeres) give rise, by alternating clockwise and counterclockwise divisions, ...
micrometer instrument for making precise linear measurements of dimensions such as diameters, thicknesses, and lengths of ...
micrometre metric unit of measure for length equal to 0.00l mm, or about 0.000039 inch. Its ... [2 Related Articles]
Micromonadophyceae (from the article "algae") ...the macroscopic pondweed Chara , filamentous Spirogyra , and desmids. Class Micromonadophyceae Primarily ...
Micromonas (from the article "algae") ...and desmids. Class Micromonadophyceae Primarily marine; includes the smallest eukaryotic alga, Micromonas . Class Pleurastrophyceae Freshwater and ...
Micronesia country in the western Pacific Ocean. It is composed of more than 600 islands and ... [19 Related Articles]
Micronesia, flag of national flag consisting of a blue field with four white stars in the centre. The ...
Micronesia-FSM, College of (from the article "Micronesia") There are elementary schools on every island, and each state has at least one public ...
Micronesian culture the beliefs and practices of the indigenous peoples of the ethnogeographic group of Pacific Islands ... [12 Related Articles]
Micronesian languages group of mutually unintelligible languages belonging to the Eastern, or Oceanic, branch of the Austronesian ... [2 Related Articles]
micronucleus (from the article "ciliate") Ciliates have one or more macronuclei and from one to several micronuclei. The macronuclei control ...
microorganism (from the article "dairy product") ...to adjust the fat-to-protein ratio of the milk. In some cases the cheese yield is ...
micropaleontology (from the article "Earth sciences") Microscopic fossils, such as ostracods, foraminifera, and pollen grains, are common in sediments of the ...
micropegmatite quartz and alkali feldspar intergrowth so fine that it can be resolved only under the ...
microperthite (from the article "orthoclase") ...a series in which sodium-bearing and potassium-bearing species intermingle; thus, there is a continuous chemical ...
microphone device for converting acoustic power into electric power that has essentially similar wave characteristics. While ... [7 Related Articles]
microphthalmia (from the article "malformation") Cyclopian malformations with a single median eye occur rarely in man and other animals. More ...
microphyll (from the article "fern") ...that have narrow leaves also have only a single central vascular strand (e.g., certain species ...
microplankton (from the article "plankton") ...can be collected with a coarse net, and morphological details of individual organisms are easily ...
microprism area (from the article "photography, technology of") The eye is not good at recognizing slight unsharpness, so focusing screens (especially in reflex ...
microprocessor any of a type of miniature electronic device that contains the arithmetic, logic, and control ... [16 Related Articles]
Micropsitta (from the article "parrot") The pygmy parrots of the subfamily Micropsittinae all belong to the genus Micropsitta . The six ...
Micropterigoidea (from the article "lepidopteran") ...bore in turf or wood; related families, less-known: Prototheoridae (Africa and Australia), Palaeosetidae (Australia), Anomosetidae ...
micropyle (from the article "insect") The eggshell, or chorion, commonly provided with an air-filled meshwork, provides for respiration of the ...
micropyle (from the article "angiosperm") ...After initiation of the carpel wall, one or two integuments arise near the base of ...
Microraptor (from the article "dromaeosaur") ...pounds). Utahraptor was considerably larger but is incompletely known. Dromaeosaurus and Velociraptor both reached a ...
microregion (from the article "Kiev") ...and residential neighbourhoods. As low priority was given to housing during the Stalin period, the ...
microRNA (from the article "Life Sciences") ...not found in the mature sperm of the wild-type mice, was present in the mature ...
microsatellite DNA (from the article "heredity") ...as thousands of times. Such repeats are often found clustered in tandem near the centromeres ...
microsclere (from the article "sponge") All of the microscleres apparently are derived from a spherical type with many axons (polyaxon); ...
microscope instrument that produces enlarged images of small objects, allowing the observer an exceedingly close view ... [23 Related Articles]
microscopic anatomy (from the article "histology") branch of biology concerned with the composition and structure of plant and animal tissues in ...
microscopic reversibility, principle of principle formulated about 1924 by the American scientist Richard C. Tolman that provides a dynamic ... [1 Related Articles]
microscopic symptom (from the article "plant disease") ...result from the physiological effects of disease on distant tissues and uninvaded organs (e.g., wilting ...
microseism (from the article "seismograph") Seismographs sometimes detect small and long-continuing oscillations of the ground, called microseisms, that do not ...
microsleep (from the article "sleep") ...time not of his own choice) tend to be affected more adversely than tasks that ...
Microsoft Corporation leading developer of personal-computer software systems and applications. The company also publishes books and multimedia ... [24 Related Articles]
Microsoft Office (from the article "Computers and Information Systems") The growing competition between Google and Microsoft took another turn when Google began to offer ...
Microsoft Surface (from the article "Computers and Information Systems") Microsoft said that it would begin to market a commercial computer for information kiosks that ...
microsphere (from the article "industrial glass") Solid glass beads and microspheres used in blast cleaners, shot peening, and reflective paints can ...
Microspora (from the article "protozoan") ...in species with one-host cycles; typical species include Plasmodium falciparum, Toxoplasma gondii, Cryptosporidium , and Eimeria ...
microsporangium (from the article "plant") ...divides mitotically to form the embryo, which then develops into the sporophyte. Eventually the sporophyte ...
microspore (from the article "spore") ...from the parent plant, but rather they germinate into microscopic gametophyte individuals that are entirely ...
microsporidian any parasitic fungus of the phylum Microsporidia (kingdom Fungi), found mainly in cells of the ... [2 Related Articles]
microsporocyte (from the article "angiosperm") A transverse section of the anther reveals four areas of tissue capable of producing spores. ...
microsporophyll (from the article "gymnosperm") ...the same plant, though separately (monoecious). A pollen-bearing cone, the microstrobilus, consists of a central ...
microstate (from the article "diplomacy") ...the establishment of a modern diplomatic corps. After the larger colonies gained independence, smaller ones, ...
Microstomum (from the article "planarian") ...In some species, the organism in the cocoon divides into two parts, each of which ...
microstrainer (from the article "environmental works") Microstrainers consist of a finely woven stainless steel wire cloth mounted on a revolving drum ...
microstrobilus (from the article "gymnosperm") In most gymnosperms the pollen cones, called microstrobili, contain reduced leaves called microsporophylls. Microsporangia, or ...
Microstromatales (from the article "fungus") ...sexually in teleomorphic phase; example genera include Georgefischeria , Phragmotaenium , Tilletiaria , and Tilletiopsis . Order Microstromatales Parasitic on ...
microsurgery the specialized surgical technique of observing through a compound microscope when operating on minute structures ... [2 Related Articles]
microsurgical epididymal sperm aspiration (from the article "infertility") ...moving through the genital ducts, sperm can be taken directly from the epididymis, the coiled ...
microtasimeter (from the article "Edison, Thomas Alva") ...could be used to measure minute temperature changes in heat emitted from the Sun's corona ...
microtektite (from the article "Strewn-fields of tektites") Microtektites of millimetre and smaller size, first discovered in 1968, exhibit wider variation in composition ...
microthermal stream (from the article "river") ...streamflow decreases markedly and may cease altogether in the warm half of the year. In ...
Microtityus fundorai (from the article "scorpion") ...scorpion (Hadogenes troglodytes ) of South Africa; females attain a length of 21 ...
microtome (from the article "His, Wilhelm") ...Virchow at the University of Wurzburg, His taught at the universities of Basel (1857-72) and ...
microtonal music music using tones in intervals that differ from the standard semitones (half steps) of a ... [8 Related Articles]
Microtonus brevicollis (from the article "hymenopteran") The first generation of the braconid Microtonus brevicollis is parthenogenetic and parasitizes the adult form ...
microtoponymy (from the article "name") ...places (cities, towns, villages, hamlets). If the latter alternative is the understanding of the term ...
microtubule tubular structure of indefinite length, constructed from globular proteins called tubulins, which are found only ... [7 Related Articles]
microvilli (from the article "cell") ...for the different shapes and movements of different cells. For example, in some cells, actin ...
microwave electromagnetic radiation having a frequency within the range of 1 gigahertz to 1 terahertz (109 -101 2 ...
microwave ablation (from the article "lung cancer") ...also attack normal cells to varying degrees, causing side effects that are similar to radiation ...
microwave absorptiometry (from the article "analysis") In a manner that is similar to that described for nuclear magnetic resonance spectrometry, electron ...
microwave communication (from the article "satellite communication") Satellites provide communications links via microwave radio, most commonly in the superhigh-frequency band of 3 ...
microwave diathermy (from the article "diathermy") Three forms of diathermy are in wide use by physical therapists in hospitals and clinics: ...
microwave landing system (from the article "traffic control") ...the location of objects with particular attributes (e.g., height above ground level) for use in ...
microwave monolithic integrated circuit (from the article "integrated circuit") A special type of RFIC is known as a microwave monolithic IC (MMIC). These circuits ...
microwave oven appliance that cooks food by means of high-frequency electromagnetic waves called microwaves. A microwave oven ... [4 Related Articles]
microwave radiation (from the article "electromagnetic radiation") The microwave region extends from 1,000 to 300,000 MHz (or 30-centimetre to one-millimetre wavelengths). Although ...
microwave radio (from the article "computer") ...can carry more signals than wires; they are often used for linking buildings on a ...
microwave sintering (from the article "advanced ceramics") ...activity, or sinterability, during heat-up. It is therefore advantageous to heat ceramics to the sintering ...
microwave spectroscopy (from the article "spectroscopy") For diatomic molecules the rotational constants for all but the very lightest ones lie in ...
microworld (from the article "artificial intelligence") To cope with the bewildering complexity of the real world, scientists often ignore less relevant ...
Mictacea (from the article "crustacean") ...covering part of second thoracic segment; 4 pairs of well-developed abdominal appendages; about 8 mm; ...
Mictecacihuatl (from the article "Day of the Dead") ...and making peace with the eventuality of death by treating it familiarly, without fear and ...
mictic egg (from the article "reproductive behaviour") ...When the population reaches a peak in the early summer, a second type of egg ...
Mictlantecuhtli Aztec god of the dead, usually portrayed with a skull face. With his wife, Mictecacihuatl, ...
Micu-Klein, Ion Inochentie (from the article "Romania") ...the new Eastern rite Catholic, or Uniate, clergy by the union fell short of expectations, ...
MICUM Accords (from the article "international relations") ...only the Ruhr magnates could satisfy French industrial needs. So Poincare ordered his Ruhr army ...
Mid Bedfordshire district, administrative county of Bedfordshire, south-central England. The district lies almost entirely within the historic ...
Mid Devon district, administrative and historic county of Devon, southwestern England, located between the bleak moorlands of ...
Mid Suffolk district, administrative and historic county of Suffolk, southeastern England. It occupies the central part of ...
Mid Sussex district, administrative county of West Sussex, historic county of Sussex, southeastern England. It occupies an ...
Mid-Atlantic Ridge submarine ridge lying along the north-south axis of the Atlantic Ocean; it occupies the central ... [5 Related Articles]
Mid-century Generation (from the article "Spanish literature") A second postwar current, "social literature," or "critical realism," arrived with the so-called Midcentury Generation, ...
Mid-Indian Ridge submarine ridge of the Indian Ocean that is a direct continuance of the Mid-Atlantic Ridge; ... [1 Related Articles]
mid-infrared spectroscopy (from the article "spectroscopy") ...is commonly used to measure energy. Infrared spectroscopy historically has been divided into three regions, ...
mid-latitude desert climate (from the article "climate") Although these climates are contiguous with the tropical dry climates of North and South America ...
mid-latitude steppe climate (from the article "climate") Although these climates are contiguous with the tropical dry climates of North and South America ...
mid-life crisis (from the article "psychological development") Middle age is a period of adjustment between the potentialities of the past and the ...
mid-ocean-ridge basalt (from the article "igneous rock") ...(e.g., Iceland, which sits on the Mid-Atlantic Ridge). Along these divergent boundaries, the erupted basalts ...
Mid-Sahara Rise (from the article "Tibesti") part of the Mid-Sahara Rise of the central Sahara. Mostly in northwestern Chad, the mountains ...
Midas in Greek and Roman legend, a king of Phrygia, known for his foolishness and greed. ... [2 Related Articles]
Midas any of a series of unmanned U.S. military satellites developed to provide warning against surprise ...
Midas king of Phrygia (an ancient district in west-central Anatolia), first mentioned in extant Greek literature ... [3 Related Articles]
Midas City (from the article "Midas") The name Midas was probably dynastic, alternating in Phrygia with Gordieus. Both names are perpetuated ...
Midas Monument (from the article "art and architecture, Anatolian") ...of the megaron type and the bastions of an impressive city gate. The rock-cut monuments ...
midbrain (from the article "nervous system, human") The midbrain (mesencephalon) contains the nuclear complex of the oculomotor nerve as well as the ...
midcarpal joint (from the article "wrist") ...the distal radioulnar joint, which acts as a pivot for the forearm bones; the radiocarpal ...
Midcon Corporation (from the article "Occidental Petroleum Corporation") ...oil production in the 1970s, however, and in 1982 Occidental acquired Cities Service Company to ...
Midcontinent rift system (from the article "Precambrian time") ...been brought to the present surface on major thrusts from the mid-lower crust. A result ...
midcourse phase (from the article "rocket and missile system") ...the precise amount of propulsion required to place the missile on a specific ballistic trajectory. ...
Middelburg gemeente (municipality), southwestern Netherlands, on Walcheren, a peninsula that was formerly an ... Middelhoff, Thomas Could signal success in publishing be translated into the music business as well? In 2001 ...
Middendorff, Alexander Theodor von (from the article "permafrost") ...for centuries, scientists of the Western world did not take seriously the isolated reports of ...
Middle (from the article "Tristan da Cunha") ...in the South Atlantic Ocean about midway between southern Africa and South America. The territory ...
middle age period of human adulthood that immediately precedes the onset of old age. Though the age ... [1 Related Articles]
Middle Ages the period in European history from the collapse of Roman civilization in the 5th century ... [215 Related Articles]
Middle America the isthmian tract between the southern Rocky Mountains and the northern tip of the Andes ... [2 Related Articles]
Middle America Trench submarine depression in the Pacific Ocean off the western coast of Central America. Extending northwest-southeast ...
Middle American Indian member of any of the aboriginal peoples inhabiting the area from northern Mexico to Nicaragua. [3 Related Articles]
middle Amu Darya oasis (from the article "Turkmenistan") The middle Amu Darya oasis, in contrast to other oases, stretches almost without interruption for ...
Middle Anglia a province of Anglo-Saxon England, lying between East Anglia and Mercia and inhabited by a ...
Middle Archaic Chinese language (from the article "Chinese languages") Middle Archaic Chinese is the language of some of the earliest writings of the Confucian ...
Middle Asia (from the article "Asia") Middle Asia includes the plains and hills lying between the Caspian Sea to the west ...
Middle Assyrian cuneiform (from the article "cuneiform") ...were humbler. Specifically Old Assyrian cuneiform is attested mostly in the records of Assyrian trading ...
Middle Assyrian period (from the article "Ashur-uballit I") (reigned c. 1365-30 BC), king of Assyria during Mesopotamia's feudal age, who created the first ...
Middle Atlantic states (from the article "North, the") ...the Confederacy during the American Civil War. This struggle against slavery and secession obscured the ...
Middle Atlas mountain range in central Morocco, Africa, lying between a plateau and plain region (northwest) and ... [2 Related Articles]
middle bout (from the article "stringed instrument") ...individual nuance with scarcely any measurable deviation from the norm. The rounded, outward-curving sections of ...
Middle Bronze Age (from the article "Anatolia") ...trade and improved transport. The beginnings of trade with Assyria are indicated by the pottery ...
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