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Definition of Tricho- (prefix)
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Tricho- (prefix): Pertaining to hair. As in trichobezoar (a hair ball), trichotillomania (compulsive hair pulling), trichoepithelioma (a tumor from a hair follicle), etc. From the Greek thrix, trichos, meaning hair. See also: Trich- (prefix).