- a small fibre or part of a fibre
- a threadlike structure, such as a root hair or a thread of muscle tissue
WordReference Random House Unabridged Dictionary of American English © 2026
fi•bril•la
(fī bril′ə, fi-),USA pronunciation n., pl. -bril•lae
WordReference Random House Unabridged Dictionary of American English © 2026-
(-bril′ē).USA pronunciation
- Botany, Cell Biologya fibril.
fi•bril
(fī′brəl, fib′rəl),USA pronunciation n.
fi′bril•lar, adj.
fi′bril•lose′, adj.
- a small or fine fiber or filament.
- Botanyany of the delicate hairs on the young roots of some plants.
- Cell Biologyany threadlike structure or filament.
- Neo-Latin fibrilla, equivalent. to Latin fibr(a) fiber + -illa diminutive suffix
- 1655–65
fi′bril•lose′, adj.
Collins Concise English Dictionary © HarperCollins Publishers::
fibril /ˈfaɪbrɪl/, fibrilla /faɪˈbrɪlə; fɪ-/ n ( pl -brils, -brillae /-ˈbrɪliː/)
'fibrilla' also found in these entries (note: many are not synonyms or translations):