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Related to fibril: fibrillar, amyloid, fibrillar protein


 (fī′brəl, fĭb′rəl)
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.

[New Latin fibrilla, diminutive of Latin fibra, fiber.]

fi′bril·lar (-lər), fi′bril·lar′y (-lĕr′ē) adj.
fi′bril·lose′ (-lōs′) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈfaɪbrɪl) or


n, pl -brils or -brillae (-ˈbrɪliː)
1. a small fibre or part of a fibre
2. (Biology) biology a threadlike structure, such as a root hair or a thread of muscle tissue
[C17: from New Latin fibrilla a little fibre]
ˈfibrilar, fiˈbrillar, fiˈbrillose adj
fiˈbrilliˌform adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈfaɪ brəl, ˈfɪb rəl)

1. a small or fine fiber or threadlike structure.
[1655–65; < New Latin <fibrilla < Latin fibra fiber]
fi′bril•lar, adj.
fi′bril•lose`, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.fibril - a very slender natural or synthetic fiberfibril - a very slender natural or synthetic fiber
barb - one of the parallel filaments projecting from the main shaft of a feather
cobweb, gossamer - filaments from a web that was spun by a spider
chromatid - one of two identical strands into which a chromosome splits during mitosis
myofibril, myofibrilla, sarcostyle - one of many contractile filaments that make up a striated muscle fiber
rhizoid - any of various slender filaments that function as roots in mosses and ferns and fungi etc
hypha - any of the threadlike filaments forming the mycelium of a fungus
paraphysis - a sterile simple or branched filament or hair borne among sporangia; may be pointed or clubbed
fiber, fibre - a slender and greatly elongated substance capable of being spun into yarn
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


A very fine continuous strand:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n. filamento, fibrilla, fibra pequeña.
English-Spanish Medical Dictionary © Farlex 2012
References in classic literature ?
So when in tears The love of years Is wasted like the snow, And the fine fibrils of its life By the rude wrong of instant strife Are broken at a blow Within the heart Do springs upstart Of which it doth now know, And strange, sweet dreams, Like silent streams That from new fountains overflow, With the earlier tide Of rivers glide Deep in the heart whose hope has died-- Quenching the fires its ashes hide,-- Its ashes, whence will spring and grow Sweet flowers, ere long, The rare and radiant flowers of song!
At first she would not look straight up at him, but her eyes soon lifted, and his plumbed the deepness of the ever-varying pupils, with their radiating fibrils of blue, and black, and gray, and violet, while she regarded him as Eve at her second waking might have regarded Adam.
Under the company's preclinical studies, PTR-01 demonstrated C7 staining in basement membranes with de novo anchoring fibril formation and improved survival in models of RDEB.
Results from SAXS analyses Parameter PSA PSA-gf-30% AA PSA-gf-45% AA Fibril radius [R.sub.1](nm) 4.34 5.80 5.63 Fibril radius [R.sub.2](nm) 9.87 10.39 13.16 Fibril radius [R.sub.3](nm) 18.61 19.03 24.70 Fibril length [l.sub.f](nm) 387 413 462 Misorientation 13.13 14.15 15.75 [B.sub.[phi]]([degrees]) Parameter PSA-gf-56% AA Fibril radius [R.sub.1](nm) 6.17 Fibril radius [R.sub.2](nm) 13.35 Fibril radius [R.sub.3](nm) 25.33 Fibril length [l.sub.f](nm) 547 Misorientation 19.20 [B.sub.[phi]]([degrees]) TABLE 2.
CAEL-101 is a first-in-class amyloid fibril targeted therapy designed to improve organ function by reducing or eliminating amyloid deposits in patients with AL amyloidosis.
2016) to measure the effects of PF infiltration on the elementary fibril swelling as a function of humidity.
A typical metric for fibers is the fibril width measurement which can be illustrated using UHMWPE fibers such as the one in Figure 3(a) (a region of the SK76 fiber shown in Figure 1(b)).
where: [S.sub.t.sup.i] is the cross-section area and [l.sub.t.sup.i] is the length of any single LLDPE fibril during recovery which changes with recovery time.
The enzyme hydrolysis can effectively shear the fibril length and sharpen the diameter of cellulose fibrils, which will help to manufacture CNFs with special size according to the requirements of applications using a virtually nonenvironmental pollution process.
To test the inhibitory effect of FDE on A[beta] aggregation, 1 [micro]M A[beta]42 monomer was first incubated with a serial gradient of FDE in DMEM at 37[degrees]C for 10 d to form A[beta] fibril; the resultants were incubated with 5 [micro]M Th T solution.
Fluorescent probes, such as benzothiazole dye thioflavin T (ThT), are widely and efficiently used for diagnosing amyloid fibril formation and studying fibrillar structure (Figure 1(a)) [13-16].