co·ed or co-ed 
(kōĕd′)
(kōĕd′)n.
Often Derogatory
Often Derogatory
A woman who attends a coeducational college or university.
adj.
Informal
Informal
1. Of or relating to an education system in which both men and women attend the same institution or classes; coeducational: a coed university.
2. Open to both sexes: a coed dorm; a coed pool.
[Short for coeducational.]
Usage Note: Although as a noun coed once referred to male and female students at a college, the word now refers primarily to young women who attend a coeducational college or university. Because there is no separate word for male college students, and the word carries a connotation of frivolity, the term coed is often considered derogatory.