Dictionary.com

tricho-

Save This Word!

a combining form meaning “hair,” used in the formation of compound words: trichocyst.

QUIZZES

DO A DOUBLE TAKE ON THIS QUIZ ON CONTRONYMS

Look both ways before you take this quiz on contronyms, or words that can have opposite meanings.
Question 1 of 7
Choose the sentence that uses "rent" correctly.

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing

Meet Grammar Coach

Improve Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help
Also especially before a vowel, trich-.

Origin of tricho-

<Greek tricho-, combining form of thríx (genitive trichós)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

WORDS THAT USE TRICHO-

What does tricho- mean?

Tricho- is a combining form used like a prefix meaning “hair.” It is used in many medical and scientific terms.

Tricho- comes from the Greek thríx, meaning “hair.” Another combining form meaning “hair,” and especially “bristles,” is chaeto-, which you can learn more about in our Words That Use article for the form.

What are variants of tricho-?

When combined with words or word elements that begin with a vowel, tricho- becomes trich-, as in trichitis.

Examples of tricho-

One example of a scientific term that features the combining form tricho- is tricholith, “a small mass of hair”—that is, a hairball.

The first part of the word, tricho-, means “hair.” What about the -lith portion of the word? The combining form -lith means “stone,” from the Greek líthos. In pathology, such a “stone” can denote various types of small masses or concretions. Tricholith literally translates to “hair stone.”

What are some words that use the combining form tricho-?

What are some other forms that tricho- may be commonly confused with?

In a few instances, tricho- is used to mean “three parts,” from the Greek trícha, source of trichotomy. This rare use of tricho- is modeled on dicho- (“in two parts”), which you can learn more about in our Words That Use article for this form.

Break it down!

The combining form -pathy is often used to denote “disease.” With this in mind, what does the medical condition of trichopathy involve?

British Dictionary definitions for tricho-

tricho-

before a vowel trich-


combining form

indicating hair or a part resembling hairtrichocyst

Word Origin for tricho-

from Greek thrix (genitive trikhos) hair
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

Medical definitions for tricho-

tricho-

pref.

Hair; thread; filament:trichonocardiosis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
FEEDBACK