Excitation or irritation of an organism or part by external influence, mechanical, chemical, etc..
- A dictionary of scientific terms. By Henderson, I. F.; Henderson, W. D. Published 1920. (noun) (n.) (noun)
The act of goading or exciting; a sudden increase of vital energy.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (noun) (n.) (noun)
Act of stimulating or exciting; the effect produced.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (noun) (n.) (noun)
The act of exciting or spurring on, or of producing a temporary increase of vitality in; state of being so excited.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (noun) (n.) (noun)

Usage examples:

The night was all a- sparkle under the moonlight, and the air, spiced with frost, went into the lungs with the tingling stimulation of needles.
- The Portal of Dreams by Charles Neville Buck
Chairs and tables spring up like mushrooms in the roadway, among which too few waiters distribute those very inexpensive refreshments which seem to be purchased rather for the right to the seat that they confer than for any stimulation
- A Wanderer in Florence by E. V. Lucas
The experience of this moment, the union of stimulation and repose, constitutes the unique aesthetic emotion.
- The Psychology of Beauty by Ethel D. Puffer