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Absence of hair, congenital or acquired.
Synonym(s): atrichosis
[G. a- priv. + thrix (trich-), hair]
Farlex Partner Medical Dictionary © Farlex 2012


(ā-trĭk′ē-ə, ə-trĭk′-)
The congenital or acquired absence of hair.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


Absence of hair, congenital or acquired.
Synonym(s): atrichosis.
[G. a- priv. + thrix (trich-), hair]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


Absence of hair.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
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References in periodicals archive ?
Atrichia with papular lesions: a report of three novel human hairless gene mutations and a revision of diagnostic criteria.
Congenital atrichia associated with situs inversus and mesocardia.
Atrichia with papular lesions; a variant of congenital Ectodermal dysplasia.
Genomic organization of human hairless gene (hr) and identification of a mutation underlying congenital Atrichia in Arab Palestinian family.
A missense mutation in the zinc--finger domain of the human hairless gene underlies congenital atrichia in a family of Irish travellers.
Journal of Investigative Dermatology-Evidence for Pseudo dominant Inheritance of Atrichia with papular lesions.