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microcircuit a miniature electronic circuit, usu. integrated with insulating material as on a silicon chip.
microclimate the climate of a small, specific, or partial area rather than that of the whole, as of a city or greenhouse. (Cf. macroclimate.)
microcline a lustrous feldspar mineral that occurs in various colors and is used in making porcelain.
micrococcus any of various rounded or oval-shaped bacteria that appear in irregular clusters and survive on dead or living organic matter.
microcomputer a small computer built with miniaturized components and used for applications that have a limited scope, such as small business and home computing and word processing. (See minicomputer.)
microcopy a photographic copy of printed or graphic matter that is very greatly reduced, usu. to facilitate storage.
microcosm a small, complete whole; tiny world. (Cf. macrocosm.) [2 definitions]
microcosmos a small, complete whole; tiny world; microcosm. [2 definitions]
microdot a photographic copy of something, such as written material or a document, that is reduced to an extremely tiny size, as for the purpose of espionage.
microeconomics (used with a sing. verb) the study of the nature of competition in the markets for particular goods and services. (Cf. macroeconomics.)
microelectronics (used with a sing. verb) the branch of electronics dealing with the development of miniature electronic circuits and their uses.
microencapsulation a process or procedure in which tiny particles, as of drug or medicinal substances, are enclosed or covered separately in order to cause gradual release of their effects.
microevolution the slight hereditary alteration of an organism, as by new combinations of genes, that precedes a small degree of change in a particular form of life.
microfiche a card-sized sheet of microfilm for storage of photographically reduced images, usu. of many pages of text or data.
microfilm a film for recording highly reduced photographic images of material such as text or drawings. [2 definitions]
microfilmable combined form of microfilm.
microform any form or type of photographically reduced document or print, such as microfilm or microfiche.
microgram a unit of weight equal to one millionth of a gram. [2 definitions]
micrograph a drawing or photograph of something as it is seen through a microscope. [2 definitions]
microgroove an especially fine groove on a long-playing record, or a record having such a groove.
micrometer1 an instrument for measuring minute distances, angles, diameters, and the like in telescopic and microscopic images. [2 definitions]