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Pronunciation: me-sek'to-derm


  1. Cells in the area around the dorsal lip of the blastopore where mesoderm and ectoderm undergo a process of separation.
  2. That part of the mesenchyme derived from ectoderm, especially from the neural crest in the cephalic region in very young embryos.

Synonym(s): ectomesenchyme

[mes- + ectoderm]

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.