The act of stimulating, or the state of being stimulated.
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.
I have so much satisfaction in my life. I have a beautiful wife and the great stimulation of an interesting career. I'm the most happy fellow that I know. Brendan Fraser
I'm sure the feeling of fear, as long as you can take advantage of it and not be rendered useless by it, can make you extend yourself beyond what you would regard as your capacity. If you're afraid, the blood seems to flow freely through the veins, and you really do feel a sense of stimulation. Edmund Hillary
NASA has been one of the most successful public investments in motivating students to do well and achieve all they can achieve. It's sad that we are turning the programme in a direction where it will reduce the amount of motivation and stimulation it provides to young people. Neil Armstrong
The dignity of the artist lies in his duty of keeping awake the sense of wonder in the world. In this long vigil he often has to vary his methods of stimulation; but in this long vigil he is also himself striving against a continual tendency to sleep. Marc Chagall
There is more refreshment and stimulation in a nap, even of the briefest, than in all the alcohol ever distilled. Ovid