Fibril

//ˈfaɪbɹ(ə)l// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A fine fibre or filament.
  2. 2
    a very slender natural or synthetic fiber wordnet
  3. 3
    Any fine, filamentous structure in animals or plants.

Synonyms

All synonyms
fibrillafilamentstrand

Etymology

Borrowed from Latin fibrilla, diminutive of Latin fibra. Doublet of fibrilla. Compare fibre.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.