chlamydia n 1: a sexually transmitted infection caused by bacteria of the genus Chlamydia 2: coccoid rickettsia infesting birds and mammals; cause infections of eyes and lungs and genitourinary tract
chlamydia \chlamydia\ n. a coccoid rickettsia which may infect birds and mammals; it causes infections of eyes and lungs and the genitourinary tract. [WordNet 1.5]