Stim`u*la"tion (?), n. [L. stimulatio: cf. F. stimulation.]
1.
The act of stimulating, or the state of being stimulated.
2. Physiol.
The irritating action of various agents (stimuli) on muscles, nerves, or a sensory end organ, by which activity is evoked; especially, the nervous impulse produced by various agents on nerves, or a sensory end organ, by which the part connected with the nerve is thrown into a state of activity; irritation.
© Webster 1913.