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单词 chronaxie
释义

chronaxie

noun

chron·​ax·​ie ˈkrō-ˌnak-sē How to pronounce chronaxie (audio)
ˈkrä-
variants or less commonly chronaxy
: the minimum time required for excitation of a structure (such as a neuron) by a constant electric current of twice the threshold voltage

Word History

Etymology

borrowed from French, from Greek chrónos "time" + axía "worth, value," noun derivative (perhaps via *axi-ia) of áxios "of like value, worth, worthy" — more at chrono-, axiom

Note: The term chronaxie was introduced by the French neuroscientist Louis Lapicque (1866-1952) in "Définition expérimentale de l'excitabilité," Comptes rendus hebdomedaires des séances et mémoires de la Société de Biologie, 61e année, Année 1909, tome second, p. 283.

First Known Use

1922, in the meaning defined above

Medical Definition

chronaxie

noun

chron·​ax·​ie
variants also chronaxy
ˈkrōn-ˌak-sē How to pronounce chronaxie (audio) ˈkrän- How to pronounce chronaxie (audio)
or chronaxia
krō-ˈnak-sē-ə How to pronounce chronaxie (audio) krə- How to pronounce chronaxie (audio)
krän-ˈak-
plural chronaxies also chronaxias
: the minimum time required for excitation of a structure (as a nerve cell) by a constant electric current of twice the threshold voltage compare rheobase
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更新时间:2024/12/23 12:19:22