fib·ril·la·tion 
(fĭb′rə-lāshən, fī′brə-)
(fĭb′rə-lāshən, fī′brə-)n.
1. The forming of fibers.
2.
a. Fine, rapid twitching of individual muscle fibers with little or no movement of the muscle as a whole.
b. Rapid uncoordinated twitching movements that replace the normal rhythmic contraction of the heart and may cause a lack of circulation and pulse.
- prostate
- prostatectomy
- prostate gland
- prostate-specific antigen
- prostatic
- prostatism
- prostatitis
- prosthesis
- prosthetic
- prosthetically
- prosthetic group
- prosthetics
- prosthetist
- prosthodontia
- prostitute
- prostitution
- prostitutor
- prostomial
- prostomium
- prostrate
- prostration
- prostrator
- prostyle
- prosy
- prot-