Relating to sexual or romantic desire directed toward another person or external object, not oneself.
From allo- (other, different) + erotic (from Greek eros, sexual love) + -ic. This psychological term distinguishes desire directed outward from self-directed desire or narcissism.
Psychologists use 'alloerotic' to contrast with 'autoerotic'—it's simply the fancy word for being attracted to someone else rather than only to yourself, which sounds obvious but was important to define for psychological research.
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