MICROCOUSTIC
Mi`cro*cous"tic, n.

Defn: An instrument for making faint sounds audible, as to a partially deaf person.

MICROCRITH
Mi`cro*crith", n. Etym: [Micro- + crith.] (Chem.)

Defn: The weight of the half hydrogen molecule, or of the hydrogen atom, taken as the standard in comparing the atomic weights of the elements; thus, an atom of oxygen weighs sixteen microcriths. See Crith. J. P. Cooke.

MICROCRYSTALLINE
Mi`cro*crys"tal*line, a. Etym: [Micro- + crystalline.] (Crystallog.)

Defn: Crystalline on a fine, or microscopic, scale; consisting of fine crystals; as, the ground mass of certain porphyrics is microcrystalline.

MICROCYTE
Mi"cro*cyte, n. Etym: [Micro- + Gr. (Physiol.)

Defn: One of the elementary granules found in blood. They are much smaller than an ordinary corpuscle, and are particularly noticeable in disease, as in anæmia.

MICRODONT
Mic"ro*dont, a. Etym: [Micr- + Gr. (Anat.)

Defn: Having small teeth.