1. (Bot.)
Defn: An unfertilized, rounded mass of protoplasm, produced in an oögonium.
Note: After being fertilized by the access of antherozoids it becomes covered with a cell wall and develops into an oöspore, which may grow into a new plant like the parent.
2. (Bot.)
Defn: An analogous mass of protoplasm in the ovule of a flowering plant; an embryonic vesicle. Goodale.
OOSPORANGIUM; OOESPORANGIUM
O`ö*spo*ran"gi*um, n.; pl. L. Oösporangia, E. Oösporangiums. Etym:
[NL., fr. Gr. (Bot.)
Defn: An oögonium; also, a case containing oval or rounded spores of some other kind than oöspores.
OOSPORE; OOESPORE O"ö*spore, n. Etym: [Gr. (Bot.) (a) A special kind of spore resulting from the fertilization of an oösphere by antherozoids. (b) A fertilized oösphere in the ovule of a flowering plant.
OOSPORIC; OOESPORIC
O`ö*spor"ic, a. (Bot.)
Defn: Of or pertaining to an oöspore.