oosphere
(noun) a gamete; used especially of lower plants
Source: WordNet® 3.1
oosphere (plural oospheres)
(botany) A large nonmotile egg cell formed in an oogonium and ready for fertilization
Source: Wiktionary
O"ö*sphere, n. Etym: [Gr. sphere.]
1. (Bot.)
Definition: 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.)
Definition: An analogous mass of protoplasm in the ovule of a flowering plant; an embryonic vesicle. Goodale.
Source: Webster’s Unabridged Dictionary 1913 Edition
23 November 2024
(adjective) concerned primarily with theories or hypotheses rather than practical considerations; “theoretical science”
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