Fibrillating
adj, verb
adj, verb ·Rare ·Advanced level
Definitions
Verb
- 1 present participle and gerund of fibrillate form-of, gerund, participle, present
Adjective
- 1 Splitting into fibrils or fibres.
- 2 Of a muscle, especially in the heart: undergoing fibrillation; quivering.
"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."
Example
More examples"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."
Etymology
From fibrillate + -ing.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.