stimulation-n; 3 Senses

Sense Number 1: the physiological activation of an organism or organ

Commentary: STIMULATION[+event][+physiological][+activation][+of_organism]

Examples:
This exercise is great for the stimulation of your cardiovascular system.
The experiment involves the stimulation of different nerves with mild electric shocks.

Mappings:
WordNet 3.0 Sense Numbers: 1, 3

Sense Number 2: engaging, interesting activity

Commentary: STIMULATION[+activity][+interesting][+engaging]

Examples:
The brightest students are getting almost no stimulation in these classes.
It was a great stimulation to Mary to get out of the office for two weeks and travel to China.
Daily walks provide your pet with both exercise and mental stimulation.

Mappings:
WordNet 3.0 Sense Numbers: 2

Sense Number 3: sexual foreplay

Commentary: STIMULATION[+event][+physiological][+activation][+of_organism][+foreplay][+sexual]
NOTE: a narrow, specialized usage of Sense 1

Examples:
That shop sells aids for sexual stimulation.
The case centers on whether the sexual stimulation occurred between consenting adults.

Mappings:
WordNet 3.0 Sense Numbers: 4