different between arousal vs erogenous

English

arouse +? -al

arousal (plural arousals)

The act of arousing or the state of being aroused.
bodily arousal
emotional arousal
to influence the arousal of brain and behavior
Sexual arousal.
Some people get sexual arousal from the depiction of feet.
A physiological and psychological state of being awake or reactive to stimuli, including elevated heart rate and blood pressure and a condition of sensory alertness, mobility and readiness to respond.
- 2003, Jinhee Choi, "Fits and Startles: Cognitivism Revisited," The Journal of Aesthetics and Art Criticism, vol. 61, no. 2 (Spring), p. 152,
  Subjects report the physiological arousals induced by adrenaline and placebo differently.
Arousal from sleep or hibernation.
the mechanism for arousal from sleep
the animal undergoes regular spells of arousal

From Ancient Greek ???? (ér?s, “love”) + -genous (“producing”).

erogenous (comparative more erogenous, superlative most erogenous)

Sensitive to sexual arousal.
- 2001, Joyce Carol Oates, Middle Age: A Romance, Fourth Estate, paperback edition, p. 254,
  His neck, shoulders, upper back, and spine were erogenous zones.
Causing sexual arousal; erotogenic.

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