• synonyms


[ ik-sahy-ter, -tawr ]
/ ɪkˈsaɪ tər, -tɔr /


Physiology. a nerve whose stimulation excites greater action.
Archaic. an exciter.


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Nearby words

exciting eye, excito-, excitomotor, exciton, excitonics, excitor, excitor nerve, excitoreflex nerve, excl., exclaim, exclam.

Origin of excitor

First recorded in 1810–20; excite + -or2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for excitor

  • Like the other medicines of this order, Ergot is not an excitor of the heart and circulation.

    The Action of Medicines in the System|Frederick William Headland
  • Whence it became evident that this nerve is not the excitor, but the sensory nerve concerned in glycogenesis.

British Dictionary definitions for excitor


/ (ɪkˈsaɪtə) /


a nerve that, when stimulated, causes increased activity in the organ or part it supplies
a variant spelling of exciter
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012