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Definition of: sex
(seks) noun
1. Either of two divisions, male and female, by which organisms are distinguished with reference to the reproductive functions.
2. Males or females collectively.
3. The character of being male or female.
4. The activity or phenomena of life concerned with sexual desire or reproduction.
5. Colloq. Sexual gratification.
—the fair sex Women. [<OF sexe <L sexus, prob. orig. division]
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