[ fahy-bruhl, fib-ruhl ]
/ ˈfaɪ brəl, ˈfɪb rəl /
a small or fine fiber or filament.
Botany. any of the delicate hairs on the young roots of some plants.
Cell Biology. any threadlike structure or filament.
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Origin of fibril
1655–65; <New Latin fibrilla, equivalent to Latin fibr(a) fiber + -illa diminutive suffix
OTHER WORDS FROM fibrilfi·bril·lar, adjectivefi·bril·lose, adjective
Words nearby fibril
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for fibril
Fī′bril, a small fibre; one of the extremely minute threads composing an animal fibre; Fibril′la, a fibril, filament.
British Dictionary definitions for fibril
fibrilla (faɪˈbrɪlə, fɪ-)
/ (ˈfaɪbrɪl) /
noun plural -brils or -brillae (-ˈbrɪliː)
a small fibre or part of a fibre
biology a threadlike structure, such as a root hair or a thread of muscle tissue
Derived forms of fibrilfibrilar, fibrillar or fibrillose, adjectivefibrilliform, adjective
Word Origin for fibril
C17: from New Latin fibrilla a little fibre
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 fibril
[ fī′brəl, fĭb′rəl ]
A minute fiber.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for fibril
[ fī′brəl, fĭb′rəl ]
Any of various threadlike fibers or filaments that are constituent parts of a cell or larger structure. Cellulose fibrils are the main component of cell walls in plants. Fibrils make up the contractile part of striated muscle fiber in the body.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.