资料来源 : pyDict

受精卵

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Oosperm \O"["o]*sperm\, n. [Gr. ? an egg + E. sperm.] (Biol.)
   The ovum, after fusion with the spermatozo["o]n in
   impregnation. --Balfour.