Blastocyst

//ˈblæstəsɪst// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The mammalian blastula.
  2. 2
    the blastula of a placental mammal in which some differentiation of cells has occurred wordnet

Synonyms

All synonyms
blastodermic vesicleblastodermic vessicle

Etymology

From blasto- + cyst.

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