10 letters · 14 points in Scrabble
noun any cell resulting from cleavage of a fertilized egg
originEtymology tree English blasto- Proto-Indo-European *(s)mer-der. Proto-Hellenic *(h)méros Ancient Greek μέρος (méros)der. English -mere English blastomere From blasto- + -mere.
Etymology from Wiktionary, CC BY-SA 3.0