Topic: BIOLOGY
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| Date: | 1300-1400 |
| Language: | Latin |
| Origin: | sexus |
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sex1 S1 W2
1 [uncountable] the physical activity that two people do together in order to produce babies, or for pleasure : 
All you see on TV is sex and violence these days.the dangers of casual sex (=having sex with someone without intending to have a serious relationship)
All you see on TV is sex and violence these days. premarital sex/sex before marriage (=sex happening before marriage)
the dangers of casual sex (=having sex with someone without intending to have a serious relationship) safe sex (=ways of having sex that reduce the spread of sexual diseases)
unprotected sex (=sex without a condom)
2 [uncountable]HB whether a person, plant, or animal is male or female : Put your name, and sex at the top of the form.
Put your name, and sex at the top of the form.3 [countable] all men, considered as a group, or all women, considered as a group :
4 a school etc for either males or females, but not for both together
