Term Name:	hair cycle
Synonyms:
Definition:	The cyclical phases of growth (anagen), regression (catagen), quiescence (telogen), and shedding (exogen) in the life of a hair; one of the collection or mass of filaments growing from the skin of an animal, and forming a covering for a part of the head or for any part or the whole of the body.
Ontology:	GO: Biological Process [GO:0042633]    QuickGO    AmiGO