OSTROGOTH
Os"tro*goth, n. Etym: [L. Ostrogothi, pl. See East, and Goth.]
Defn: One of the Eastern Goths. See Goth.
OSTROGOTHIC
Os`tro*goth"ic, a.
Defn: Of or pertaining to the Ostrogoths.
OSWEGO TEA
Os*we"go tea". (Bot.)
Defn: An American aromatic herb (Monarda didyma), with showy, bright red, labiate flowers.
OTACOUSTIC
Ot`a*cous"tic, a. Etym: [Oto- + acoustic: cf. F. otacoustique.]
Defn: Assisting the sense of hearing; as, an otacoustic instrument.
OTACOUSTIC; OTACOUSTICON
Ot`a*cous"tic, Ot`a*cous"ti*con, n.
Defn: An instrument to facilitate hearing, as an ear trumpet.