English edit

Etymology edit

From fibrillate +‎ -ing.

Verb edit

fibrillating

  1. present participle and gerund of fibrillate

Adjective edit

fibrillating (comparative more fibrillating, superlative most fibrillating)

  1. Splitting into fibrils or fibres.
  2. Of a muscle, especially in the heart: undergoing fibrillation; quivering.
    • 2000, JG Ballard, Super-Cannes, Fourth Estate, published 2011, page 107:
      A publicity plane flew along the Croisette, its pennant fluttering like the trace of a fibrillating heart, unnoticed by the sunbathers stretched in their loungers in the hotel concessions.