Found 2 items, similar to fibril.
English → English (WordNet) Definition: fibril fibril n : a very slender natural or synthetic fiber [syn: filament, strand]
English → English (gcide) Definition: Fibril 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]