[ fahy-bruh s ]
/ ˈfaɪ brəs /


containing, consisting of, or resembling fibers.

Origin of fibrous

First recorded in 1620–30; fibr- + -ous

Related forms Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for fibrous

British Dictionary definitions for fibrous


/ (ˈfaɪbrəs) /


consisting of, containing, or resembling fibresfibrous tissue

Derived Forms

fibrously, 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

Medicine definitions for fibrous


[ fībrəs ]


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.

Science definitions for fibrous


[ fībər ]

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 forms

fibrous adjective
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.