resembling fiber or fibrous tissue.
composed of fibers, as a tumor.

1850–55; fibr- + -oid Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
fibroid (ˈfaɪbrɔɪd)
1.  anatomy (of structures or tissues) containing or resembling fibres
2.  a benign tumour, composed of fibrous and muscular tissue, occurring in the wall of the uterus and often causing heavy menstruation

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

fibroid fi·broid (fī'broid')
Composed of or resembling fibers or fibrous tissue. n.

  1. A fibroma or myoma occurring especially on that occurs in the uterine wall.

  2. See fibroleiomyoma.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
fibroid   (fī'broid')  Pronunciation Key 
A benign tumor composed of fibrous or muscle tissue, especially one that develops in the uterus.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
The medical term for a fibroid is a leiomyoma or myoma.
Adequate description of uterine or fibroid size, fibroid location, and fibroid number.
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