cat·a·gen 
(kătə-jən)
(kătə-jən)n.
The transitional phase in the hair growth cycle, during which growth stops. It comes between anagen and telogen and is generally the shortest phase.
- functional illiterate
- functionalism
- functional isomer
- functionalist
- functionality
- functionally
- functional magnetic resonance imaging
- functional neurological symptom disorder
- functional shift
- functionary
- function key
- functionless
- function word
- functor
- fund
- fundament
- fundamental
- fundamental fermion
- fundamental force
- fundamental interaction
- fundamentalism
- fundamentalist
- fundamentalistic
- fundamentally
- fundamental particle