dorsal lip


nounEmbryology.
  1. the dorsal marginal region of the blastopore, which acts as a center of differentiation: as cells move through this region to the interior of the embryo during gastrulation, they acquire the ability to induce the overlying ectoderm to develop into a variety of tissues.

Origin of dorsal lip

1
First recorded in 1935–40

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024