[fahy-bruh s]


containing, consisting of, or resembling fibers.

Origin of fibrous

First recorded in 1620–30; fibr- + -ous
Related formsfi·brous·ly, adverbfi·brous·ness, nounin·ter·fi·brous, adjectivemul·ti·fi·brous, adjectivenon·fi·brous, adjectivesub·fi·brous, adjectiveun·fibrous, adjectiveun·fibrous·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for fibrous

hairy, coarse, muscular, sinewy, wiry, woody, pulpy, threadlike, fibroid, ropy, stalky

Examples from the Web for fibrous

Contemporary Examples of fibrous

Historical Examples of fibrous

British Dictionary definitions for fibrous



consisting of, containing, or resembling fibresfibrous tissue
Derived Formsfibrously, adverbfibrousness, noun
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

Word Origin and History for fibrous

1620s, from Modern Latin fibrosus, from Latin fibra (see fiber).

Online Etymology Dictionary, © 2010 Douglas Harper

fibrous in Medicine




Composed of or characterized by fibroblasts, fibrils, or connective tissue fibers.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

fibrous in Science



The parts of grains, fruits, and vegetables that contain cellulose and are not digested by the body. Fiber helps the intestines absorb water, which increases the bulk of the stool and causes it to move more quickly through the colon.
One of the elongated, thick-walled cells, often occurring in bundles, that give strength and support to tissue in vascular plants. Fibers are one type of sclerenchyma cell.
Any of the elongated cells of skeletal or cardiac muscle, made up of slender threadlike structures called myofibrils.
The axon of a neuron.
Related formsfibrous adjective
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.