Ost"men (?), n. pl.; sing. Ostman. [See East, and Man.] East men;
Danish settlers in Ireland, formerly so called. Lyttelton.
||Os*to"sis (?), n. [NL., from Gr. &?; a bone.] (Physiol.) Bone
||formation; ossification. See Ectostosis, and Endostosis.
||Os*tra"ce*a (?), n. pl. [NL., fr. Gr. &?; shell of a testacean.]
||(Zoöl.) A division of bivalve mollusks including the oysters and
||allied shells.
Os*tra"cean (?), n. [L. ostrea an oyster. See Oyster.] (Zoöl.) Any one
of a family of bivalves, of which the oyster is the type.
||Os*tra"ci*on (?), n. [NL., fr. Gr. &?; small shell.] (Zoöl.) A genus
||of plectognath fishes having the body covered with solid, immovable,
||bony plates. It includes the trunkfishes.
Os*tra"ci*ont (?), n. (Zoöl.) A fish of the genus Ostracion and allied
genera.
Os"tra*cism (?), n. [Gr. &?;, fr. &?; to ostracize. See Ostracize.] 1.
(Gr. Antiq.) Banishment by popular vote, -- a means adopted at Athens
to rid the city of a person whose talent and influence gave umbrage.