Blastopore
Pronunciation : Blas"to*pore
Part of Speech : n.
Etymology : [Gr. sprout + E. pore.] (Biol.)
Definition : Defn: The pore or opening leading into the cavity of invagination, or archenteron.
Note: [See Illust. of Invagination.] Balfour.
Source : Webster's Unabridged Dictionary, 1913