The diminutive of fiber. A small fiber, a fine thread.
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A minute fiber or component of a fiber. SYN: fibrilla. [Mod. L. fibrilla]
- anchoring fibrils collagen fibrils that insert in to the basal lamina of the epidermis and bind it down to the underlying dermis.
- collagen fibrils SYN: unit fibrils.
- muscular f. SYN: myofibril.
- subpellicular f. SYN: subpellicular microtubule.
- unit fibrils the fibrils that comprise a collagen fiber, ranging from 20–200 nm and averaging about 100 nm in diameter (substantially larger in tendons), with cross-striations averaging 64 nm. SYN: collagen fibrils.

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fi·bril 'fīb-rəl, 'fib- n a small filament or fiber: as
a) one of the fine threads into which a striated muscle fiber can be longitudinally split

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a very small fibre or a constituent thread of a fibre (for example, a myofibril of a muscle fibre).
fibrillaribrillary adj.

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fi·bril (fiґbril) [L. fibrilla] a minute filament, such as a component of a fiber. fibrillar, fibrillary adj

Medical dictionary. 2011.

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  • Fibril — is a fine fiber approximately 1 nm in diameter.Cytoplasmic fibrils are observed on the protoplasmic cylinders found in most spirochetal species, although no function of the cytoplasmic fibrils has been ascribed.Polysaccharides, the union of… …   Wikipedia

  • Fibril — Fi bril, n. [F. fibrille, dim. of fibre, L. fibra.] A small fiber; the branch of a fiber; a very slender thread; a fibrilla. Cheyne. [1913 Webster] …   The Collaborative International Dictionary of English

  • fibril — 1680s, back formation from Mod.L. fibrilla, dim. of L. fibra (see FIBER (Cf. fiber)) …   Etymology dictionary

  • fibril — ► NOUN technical ▪ a small or slender fibre. DERIVATIVES fibrillar adjective fibrillary adjective. ORIGIN Latin fibrilla little fibre …   English terms dictionary

  • fibril — [fī′brəl] n. [< ModL fibrilla, dim. of L fibra, FIBER] 1. a small fiber, esp. a component of a larger fiber 2. a root hair fibrillar [fī′brə lər] adj. fibrillary [fī′brə ler΄ē] …   English World dictionary

  • fibril — fibrilė statusas T sritis chemija apibrėžtis Plaušelis, skaidulėlė. atitikmenys: angl. fibril; fibrilla rus. волоконце; фибрилла …   Chemijos terminų aiškinamasis žodynas

  • fibril — noun Etymology: New Latin fibrilla, diminutive of Latin fibra Date: 1664 a small filament or fiber: as a. root hair b. (1) one of the fine threads into which a striated muscle fiber can be longitudinally split (2) neurofibril • fibrillar… …   New Collegiate Dictionary

  • fibril — n.; pl. llae [L. dim. of fibra, thread] Small fibers or threads within cells …   Dictionary of invertebrate zoology

  • fibril — fibrillar, adj. fibrillose, adj. /fuy breuhl, fib reuhl/, n. 1. a small or fine fiber or filament. 2. Bot. any of the delicate hairs on the young roots of some plants. 3. Cell Biol. any threadlike structure or filament. [1655 65; < NL fibrilla,… …   Universalium

  • fibril — noun a) A fine fibre or filament b) Any fine, filamentous structure in animals or plants …   Wiktionary

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