Medical Definition of arousal
1a: the act of arousing <arousal from sleep>b: the state of being aroused; specifically : responsiveness to stimuli <… cells of the locus coeruleus, a brain center involved in maintaining attention and arousal …—Science, 20 June 1986>
2: a state of physiological and psychological excitation caused by sexual contact or other erotic stimulation <Studies show 60% of patients taking the drugs experience some form of sexual dysfunction, ranging from loss of desire to problems with arousal …—Tara Parker-Pope, The Wall Street Journal, 16 Mar. 2001>
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