['әuvizәm]
卵源学说

Ovism \O"vism\, n. [Ovum + -ism.] (Zo["o]l.)
The old theory that the egg contains the whole embryo of the
future organism and the germs of all subsequent offsprings
and is merely awakened to activity by the spermatozo["o]n; --
opposed to {spermism} or {animalculism}.
[Webster 1913 Suppl.]