a. [ Micro- + Gr. &unr_; sign, mark: cf. F. microsème. ] (Anat.) Having the orbital index relatively small; having the orbits broad transversely; -- opposed to
n. (Cell biology) a tiny granule in the cytoplasm of a cell; it consists of ribosomes bound to fragments of the endoplasmic reticulum and mitochondria. [ WordNet 1.5 +PJC ]