OSTLER
Ost"ler, n.
Defn: See Hostler.
OSTLERESS
Ost"ler*ess, n.
Defn: A female ostler. [R.] Tennyson.
OSTLERY
Ost"ler*y, n.
Defn: See Hostelry. [Obs.]
OSTMEN
Ost"men, n. pl.; sing. Ostman. Etym: [See East, and Man.]
Defn: East men; Danish settlers in Ireland, formerly so called.
Lyttelton.
OSTOSIS
Os*to"sis, n. Etym: [NL., from Gr. (Physiol.)
Defn: Bone formation; ossification. See Ectostosis, and Endostosis.