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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.


(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


(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.
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


A very fine continuous strand:


n. filamento, fibrilla, fibra pequeña.
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.
i] - single cross section area of LLDPE fibril during recovery process (changing with recovery time); [l.
Systemic amyloidosis is a syndrome of amyloid fibril extracellular deposition, which is a combination of more than thirty precursor proteins with a core structure of [sz] strands and various nonfibrillary constituents including glycosaminoglycans and serum amyloid P (SAP).
However, the mice lacking LAG3 that received fibril injections appeared to have normal grip strength and movement and had no significant loss of dopamine neurons.
A computational model based on the degradation of the collagen fibril network in the articular cartilage was able to predict the onset and progression of osteoarthritis in overweight people during a four-year follow-up.
The extent of the fibril alignment (and therefore the magnitude of the anisotropic swelling) changes as a function of the nozzle diameter and the printing speed.
Along with the mass spectroscopy finding, the coiled nature of the fibers and the fibril microanatomy show a resemblance to those of vertebrates, demonstrating the conserved nature of collagen fibers at both the biochemical and ultrastructural levels.
18] found no improvement of mechanical properties of PP/PA66 MFC by presence of CNT in spite of fibril formation.
We hypothesize that cadmium binds collagen directly and interferes with collagen fibril assembly in the ECM produced by osteoblasts.
Broken ends developed where fibres were pulled apart leaving frayed fibril bundles as shown in Figure 8a and Figure 8e.
The results pinpoint a critical intermediate step in the chemical pathway that leads to amyloid fibril formation.