sexually transmitted diseasen. Abbr. STD Any of various diseases, including chancroid, chlamydia, gonorrhea, and syphilis, that are usually contracted through sexual intercourse or other intimate sexual contact.
sexually transmitted disease in Science
sexually transmitted disease
(sěk'sh-ə-lē) Any of various infectious diseases, such as chlamydia, gonorrhea, and syphilis, that are transmitted through sexual intercourse or other intimate sexual contact. Also called venereal disease.