MICRASTER
Mi*cras"ter, n. Etym: [NL., fr. Gr. (Paleon.)
Defn: A genus of sea urchins, similar to Spatangus, abounding in the chalk formation; — from the starlike disposal of the ambulacral furrows.
MICRENCEPHALOUS
Mi`cren*ceph"a*lous, Etym: [Micr- + Gr.
Defn: Having a small brain.
MICRO-; MICR-
Mi"cro-, Mi"cr-. Etym: [Gr.
Defn: A combining form signifying: (a) Small, little, trivial, slight; as, microcosm, microscope. (b) (Metric System, Elec., Mech., etc.) A millionth part of; as, microfarad, microohm, micrometer.
MICROAMPERE
Mi`cro*am`père", n. Etym: [Micr- + ampère.] (Elec.)
Defn: One of the smaller measures of electrical currents; the millionth part of one ampère.
MICROANALYSIS
Mi`cro*a*nal"y*sis, n. [Micro-+ analysis.]
Defn: Analysis of the structure of materials from careful observation of photomicrographs.