sex (sks)
n.
1. The property or quality by which organisms are classified as female or male on the basis of their reproductive organs and functions.
2. Either of the two divisions, designated female and male, of this classification.
Females or males considered as a group.
3. The condition or character of being female or male; the physiological, functional, and psychological differences that distinguish the female and the male.
4. The sexual urge or instinct as it manifests itself in behavior.
5. Sexual intercourse.
6. The genitals.
n 1: activities associated with sexual intercourse; "they had sex in the back seat" [syn: sexual activity, sexual practice, sex activity] 2: either of the two categories (male or female) into which most organisms are divided; "the war between the sexes" 3: all of the feelings resulting from the urge to gratify sexual impulses; "he wanted a better sex life"; "the film contained no sex or violence" [syn: sexual urge] 4: the properties that distinguish organisms on the basis of their reproductive roles; "she didn't want to know the sex of the foetus" [syn: gender, sexuality] v 1: stimulate sexually; "This movie usually arouses the male audience" [syn: arouse, excite, turn on, wind up] 2: tell the sex (of young chickens)