Fibrillary

Part of speech: adjective

Definitions

1. Pertaining to thin, thread-like structures commonly found in cellular or tissue contexts
2. Characterized by slender and filamentous formations that often create a network in biological systems
3. Concerning or describing very fine, threadlike strands often observed in biological tissues

Etymology: "Fibrillary" is a plain formation: the adjective "fibril" with the suffix "-ary" attached. A fibril is a small fibre, from the Latin "fibrilla", a diminutive of "fibra", meaning fibre or thread. Adding "-ary" gives the sense "relating to or consisting of" such fibres, which is why the word is used for the thread-like structures found in tissues and cells. The suffix itself has a long pedigree. It descends from Latin "-arius", which formed adjectives and nouns meaning "pertaining to", and it reached English through Middle English "-arie" before settling into its modern form. Words like "dictionary" and "military" follow the same pattern, so "fibrillary" belongs to a large family of descriptive adjectives built this way.

Synonyms: fiber-like, thread-like, filamentous, strandy, stringy

Antonyms: solid, compact, dense, thick, heavy