[f. as prec.; see -ATION.] The process of becoming fibrillated; the state or condition of being fibrillated; an arrangement into fibrils; also concr. a fibrillated mass.
1839–47. R. B. Todd, The Cyclopædia of Anatomy and Physiology, III. 743/2. But in the ordinary fibrin of the blood, the fibrillation is less distinct.
1845. Todd & Bowman, Phys. Anat., I. 227. A nerve … presents itself as a pale cord with a longitudinal fibrillation.
1861. T. Graham, Pract. Med., 22. The coagulation or fibrillation of the fibrine.
1875. H. Walton, Dis. Eye, p. xxii. From this fibrillation the posterior set of fibres pass.
b. A quivering movement in the fibrils of a muscle or nerve.
1882. Quain, Med. Dict., Fibrillation, Muscular.—A localised quivering or flickering of muscular fibres.
