Term Name:	pharyngeal cleft
Synonyms:	branchial cleft, branchial groove, gill cleft, Kiemenspalten, pharyngeal ectodermal cleft, pharyngeal groove, pharyngeal groove ectoderm, pharyngeal slit, sulcus pharyngei
Definition:	An external pocketing of pharyngeal ectoderm that contacts a region of endoderm (a pharyngeal pouch) and interdigitates in the anterior and posterior directions by the pharyngeal arches.
Ontology:	Cell Ontology [UBERON:0005879]