noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The outer layer of the blastoderm; the ectoderm or epiblast. dated
2. 2
   the outer germ layer that develops into skin and nervous tissue wordnet

Synonyms

All synonyms

dermisectodermectodermepidermisexoderm

Etymology

From ecto- + -blast.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.