英语词源字典 - 在线词源网站

defibrillation (n.)[defibrillation 词源字典]: 1940, in reference to heartbeat, from de- + fibrillation "a beating in an abnormal way," especially of the muscles of the heart that contract irregularly in this condition.[defibrillation etymology, defibrillation origin, 英语词源]
defibrillator (n.): 1956, agent noun from defibrillation.
fibrillar (adj.): "pertaining to or of the nature of fibrillae," 1847, from fibrilla (see fibril) + -ar.
fibrillate (v.): 1798, "form into fibrils or fibers," from fibrilla (see fibril) + -ate (2). Related: Fibrillated; fibrillating.
fibrillation (n.): 1842, "state of being fibrillar" (that is, "arranged in fibrils"), noun of action from fibrillate (v.). Especially "a quavering in the fibrils of the muscles of the heart" causing irregular beating (1882).
atrial fibrillation: "Irregular, uncoordinated twitching or quivering (as opposed to regular contraction) of the atria of the heart, typically associated with irregular and often rapid ventricular contraction", Early 20th cent.; earliest use found in Journal of the American Medical Association.