• synonyms


noun Pathology.
  1. a condition in which the eyelashes grow inwardly.
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Origin of trichiasis

1655–65; < Late Latin < Greek trichíāsis. See trich-, -iasis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for trichiasis

Historical Examples

  • It allows puffs of smoke to escape enough to give you trichiasis.

    The Man Who Laughs

    Victor Hugo

  • Albucasis recommends burning the roots of hairs in trichiasis with a probe of gold.

  • We know that granular ophthalmia with trichiasis as a sequela was very rife.

  • Aetius (quoting from Leonidas) and Paul give very nearly the same account of the operation to remedy the trichiasis.

  • As a cautery it was used to destroy the roots of hairs, which had been removed for trichiasis.

British Dictionary definitions for trichiasis


noun pathol
  1. an abnormal position of the eyelashes that causes irritation when they rub against the eyeball
  2. the presence of hairlike filaments in the urine
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Word Origin

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


  1. 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.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.