fibrils From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounA fine fibre or filamentAny fine, filamentous structure in animals or plants Related wordsSynonymsfilamentstrandfibresmoleculesproteinsfibronectindimersmicrotubulestetramerpeptideshelicessubunitstubulesvesiclemacromoleculesporphyrins References Wiktionary — fibrils Wikipedia — fibrils