fibril

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fibril

 [fi´bril]
a minute fiber or filament. adj., adj fi´brillar, fi´brillary.
collagen f's delicate fibrils of collagen in connective tissue, composed of molecules of tropocollagen in linear array. In Type I collagen, the most common type, the tropocollagen molecules are associated in periodic, staggered arrays that give the appearance of cross-banding, forming unit fibrils; these unit fibrils are aggregated in bundles to form larger fibrils, with longitudinal striations, which may themselves be aggregated into fibers.
muscle fibril myofibril.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

fi·bril

(fī'bril),
A minute fiber or component of a fiber.
Synonym(s): fibrilla
[Mod. L. fibrilla]
Farlex Partner Medical Dictionary © Farlex 2012

fibril

(fī′brəl, fĭb′rəl)
n.
1. A small slender fiber or filament.
2. Anatomy A threadlike fiber or filament, such as a myofibril or neurofibril, that is a constituent of a cell or larger structure.
3. A long strand of proteins that are aggregated together in a beta-sheet structure; an amyloid fibril.

fi′bril·lar (-lər), fi′bril·lar′y (-lĕr′ē) adj.
fi′bril·lose′ (-lōs′) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

fi·bril

(fī'bril)
A minute fiber or component of a fiber.
Synonym(s): fibrilla.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

fibril

A fine, slender fibre.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

fibril

a small FIBRE.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Geastrum lageniforme is mainly characterized by a mycelial layer with distinct longitudinal cracks, rays with slender tips (arachnoid-like rays), saccate basidiomata and distinctly delimited fibrillose peristome.
lloydianum, but differs in its fibrillose peristome, larger pedicel (up to 4 mm high), and basidiospores with prominent truncate warts (Sunhede, 1989; Pegler et al., 1995; Soto & Wright, 2000).
Geastrum minimum differs from other congeneric species in its arched basidiomata, strongly encrusted mycelial layer, pedicellate and densely pruinose endoperidium, and fibrillose and distinctly delimited peristome.
This species is characterized by unexpanded semi-hypogeous basidiomata, mycelial layer entrusted with debris, fibrillose non-delimited peristome and basidiospores with small warts.
This species is recognized by its lignicolous habit, presence of prominent yellowish white subiculum, caespitose growth, small saccate basidiomata (up to 20 mm wide), and its fibrillose, distinct, and delimited peristome.
The main characteristics are endoperidium with cymbiform setae, fibrillose to plicate and non-delimited peristome, and small basidiospores, up to 3,7 pm diam., according to our analysis.
Pileus 2.1 cm wide, fleshy, campanulate when young to broadly plano-convex when mature, umbonate, central umbo, orange-brown to pinkish brown, fibrillose; fibrils orange brown, fine, stretches towards margins, uniformly distributed over white ground around orange brown umbo; context white, soft, slightly thick at disc, margins dentate and fragile; remains unchanging on bruising or cut.