fibrillation noun. [fʌɪbrɪ'leɪʃ(ǝ)n, fɪ-] M19.
[formed as FIBRILLATE: see -ATION.]
1. Arrangement into fibrils; formation of fibrillae; a fibrillated mass. M19.

2. Medicine. Irregular spontaneous contraction in the individual fibres of a muscle, esp. of the auricles or ventricles of the heart. L19.

3. Paper-making. The beating of vegetable fibre into its component fibrils. E20.

[TahlilGaran] English Dictionary ▲