The act of producing excitement (stimulation); also, the excitement produced.
The activity produced in an organ, tissue, or part, such as a nerve cell, as a result of stimulation
The act of exciting or putting in motion; the act of rousing up or awakening.
A transition of a nucleus, atom or molecule to an excited state by the absorption of a quantum of energy; the opposite of relaxation
Fervor, intensity of emotion or expression.
Friendliness, kindness or affection.
A moderate degree of heat; the sensation of being warm.
The effect of using mostly red and yellow hues.