Micropantograph to Midmost
Micropantograph
(Mi`cro*pan"to*graph) n. [Micro- + pantograph.] A kind of pantograph which produces
copies microscopically minute.
Micropegmatite
(Mi`cro*peg"ma*tite) n. [Micro- + pegmatite.] (Min.) A rock showing under the microscope
the structure of a graphic granite — Mi`cro*peg`ma*tit"ic a.
Microphone
(Mi"cro*phone) n. [Micro- + Gr. sound, voice: cf. F. microphone.] (Physics) An instrument
for intensifying and making audible very feeble sounds. It produces its effects by the changes of intensity
in an electric current, occasioned by the variations in the contact resistance of conducting bodies, especially
of imperfect conductors, under the action of acoustic vibrations.
Microphonics
(Mi`cro*phon"ics) n. [See Microphone.] The science which treats of the means of increasing
the intensity of low or weak sounds, or of the microphone.
Microphonous
(Mi*croph"o*nous) a. Serving to augment the intensity of weak sounds; microcoustic.
Microphotograph
(Mi`cro*pho"to*graph) n. [Micro- + photograph.]
1. A microscopically small photograph of a picture, writing, printed page, etc.
2. An enlarged representation of a microscopic object, produced by throwing upon a sensitive plate the
magnified image of an object formed by a microscope or other suitable combination of lenses.
A picture of this kind is preferably called a photomicrograph.
Microphotography
(Mi`cro*pho*tog"ra*phy) n. The art of making microphotographs.
Microphthalmia
(Mi`croph*thal"mi*a Mi`croph*thal"my) n. [Micro- + Gr. 'ofqalmo`s eye.] An unnatural
smallness of the eyes, occurring as the result of disease or of imperfect development.
Microphyllous
(Mi*croph"yl*lous) a. [Micro- + Gr. fy`llon leaf.] (Bot.) Small- leaved.
Microphytal
(Mi*croph"y*tal) a. (Bot.) Pertaining to, or of the nature of, microphytes.
Microphyte
(Mi"cro*phyte) n. [Micro- + Gr. a plant: cf. F. microphyte.] (Bot.) A very minute plant, one
of certain unicellular algæ, such as the germs of various infectious diseases are believed to be.
Micropyle
(Mi"cro*pyle) n. [Micro- + Gr. gate, orifice: cf. F. micropyle.] (Biol.) (a) An opening in the
membranes surrounding the ovum, by which nutrition is assisted and the entrance of the spermatozoa
permitted. (b) An opening in the outer coat of a seed, through which the fecundating pollen enters the
ovule. — Mi*crop"y*lar a.
Microscopal
(Mi*cros"co*pal) a. Pertaining to microscopy, or to the use of the microscope. Huxley.
Microscope
(Mi"cro*scope) n. [Micro- + -scope.] An optical instrument, consisting of a lens, or combination
of lenses, for making an enlarged image of an object which is too minute to be viewed by the naked
eye.
Compound microscope, an instrument consisting of a combination of lenses such that the image
formed by the lens or set of lenses nearest the object (called the objective) is magnified by another
lens called the ocular or eyepiece. — Oxyhydrogen microscope, and Solar microscope. See
under Oxyhydrogen, and Solar. — Simple, or Single, microscope, a single convex lens used to
magnify objects placed in its focus.
Microscopial
(Mi`cro*sco"pi*al) a. Microscopic. [R.] Berkeley.
