# fibrin

> English word · Noun · IPA /ˈfaɪbɹɪn/ · frequency rank #74,094

## Definitions
1. A white, albuminous, fibrous substance, formed in the coagulation of the blood.
2. An elastic, insoluble, whitish protein produced by the action of thrombin on fibrinogen and forming an interlacing fibrous network in the coagulation of blood.
3. An albuminous body, resembling animal fibrin in composition, found in cereal grains and similar seeds; vegetable fibrin.

## Etymology
From fibre + -in (used to form chemical names of proteins, etc).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/fibrin