Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary


play play play
adjective fi·bril·lary \ˈfī-brə-ˌler-ē, ˈfib-rə-; fī-ˈbril-ə-rē, fi-ˈbril-\

Medical Definition of fibrillary

  1. 1:  of or relating to fibrils or fibers <fibrillary overgrowth>

  2. 2:  of, relating to, or marked by fibrillation <fibrillary chorea>

Seen and Heard

What made you want to look up fibrillary? Please tell us where you read or heard it (including the quote, if possible).