blastopore
blas·to·pore
noun \ˈblas-tə-ˌpō(ə)r, -ˌpȯ(ə)r\Definition of BLASTOPORE
: the opening of the archenteron
—blas·to·por·al \ˌblas-tə-ˈpōr-əl, -ˈpȯr-\ or blas·to·por·ic \-ˈpōr-ik, -ˈpȯr-\ adjective
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