Defn: An instrument for noting minute portions of time.

MICROORGANISM; MICRO-ORGANISM
Mi`cro*ör"gan*ism, n. Etym: [Micro- + organism.] (Biol.)

Defn: Any microscopic form of life; — particularly applied to bacteria and similar organisms, esp. such are supposed to cause infectious diseases.

MICROPANTOGRAPH
Mi`cro*pan"to*graph, n. Etym: [Micro- + pantograph.]

Defn: A kind of pantograph which produces copies microscopically minute.

MICROPARASITE
Mi`cro*par"a*site, n.

Defn: A parasitic microörganism. — Mi`cro*par`a*sit"ic (#), a.

MICROPEGMATITE
Mi`cro*peg"ma*tite, n. Etym: [Micro- + pegmatite.] (Min.)

Defn: A rock showing under the microscope the structure of a graphic
granite (pegmatite).
— Mi`cro*peg`ma*tit"ic, a.

MICROPHONE
Mi"cro*phone, n. Etym: [Micro- + Gr. microphone.] (Physics)