noun Pathology.

a condition in which the eyelashes grow inwardly.

Origin of trichiasis

1655–65; < Late Latin < Greek trichíāsis. See trich-, -iasis Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for trichiasis

Historical Examples of trichiasis

British Dictionary definitions for trichiasis


noun pathol

an abnormal position of the eyelashes that causes irritation when they rub against the eyeball
the presence of hairlike filaments in the urine

Word Origin for trichiasis

C17: via Late Latin from Greek trikhiasis, from thrix a hair + -iasis
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

trichiasis in Medicine




A condition in which the hair adjacent to a natural opening turns inward and causes irritation, as in the inward turning of the eyelashes upon the eye.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.