Term Name: rhamphotheca
Synonyms: horny sheath of beak, outer keratin layer of beak
Definition: thin keratinized layer of epidermis projecting from outer surface of beak[WP].
Ontology: Uberon Ontology [UBERON:0007330]

Relationships
is part of: beak skin epidermis
is a type of: ectoderm-derived structure head external integument structure
has subtype: mandibular rhamphotheca maxillary rhamphotheca