Biology a threadlike structure, such as a root hair or a thread of muscle tissue
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
a filamentous structure found in the cells and tissues of animals and plants. Fibrils include formations of various origin and functional significance. They may be examined with a light microscope (for example, collagen and elastic fibers, myofibrils, and tonofibrils) or an electron microscope (for example, the protofibrils of muscles and cytoplasmic microfibrils).
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
A small thread or fiber, as a root hair or one of the structural units of a striated muscle.
One of the minute threadlike elements of a natural or synthetic fiber.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.