noun[mass noun] Physiology
- The resting phase of a hair follicle. Often contrasted with anagen.More example sentences
- Hair grows in cycles: anagen is the growth phase; catagen is the transition phase; and telogen is the resting phase.
- This test produces a trichogram to assess the telogen: anagen ratio but is rarely needed for clinical diagnosis of hair loss.
- In people who have telogen effluvium, a larger than normal number of hair follicles become inactive.
1920s: from Greek telos 'end' + -gen.