OOGONIUM; OOEGONIUM
O`ö*go"ni*um, n.; pl. L. Oögonia, E. Oögoniums. Etym: [NL., fr. Gr.
(Bot.)
Defn: A special cell in certain cryptogamous plants containing oöspheres, as in the rockweeds (Fucus), and the orders Vaucherieæ and Peronosporeæ.
OOIDAL
O*oi"dal, a. Etym: [Gr. (Biol.)
Defn: Shaped like an egg.
OOK
Ook, n.
Defn: Oak. [Obs.] "A branched ook." Chaucer.
OOLITE; OOELITE O"ö*lite, n. Etym: [Gr. -lite: cf.F. oölithe. So named from its resemblance to the roe of fish.] (Geol.)
Defn: A variety of limestone, consisting of small round grains, resembling the roe of a fish. It sometimes constitutes extensive beds, as in the European Jurassic. See the Chart of Geology.
OOLITIC; OOELITIC
O`ö*lit"ic, a. Etym: [Cf.F. oölithique.]
Defn: Of or pertaining to oölite; composed of, or resembling, oölite.