excitor

excitor

[ik-sahy-ter, -tawr]
noun
1.
Physiology. a nerve whose stimulation excites greater action.
2.
Archaic. an exciter.

Origin:
1810–20; excite + -or2

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World English Dictionary
excitor (ɪkˈsaɪtə)
 
n
1.  a nerve that, when stimulated, causes increased activity in the organ or part it supplies
2.  a variant spelling of exciter

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