One of the elongated, thick-walled cells, often occurring in bundles, that give strength and support to tissue in vascular plants. Fibers are one type of sclerenchyma cell.
The definition of thread is a fine line, streak or string.
A particular state of affairs; a situation:
Find another word for fibril. In this page you can discover 19 synonyms, antonyms, idiomatic expressions, and related words for fibril, like: fiber, filament, thread, thing, strand, fibrillar, microfibrils, polypeptide, monomeric, lamina and microtubules.