Definition of chlamydia
1 : any of a genus (Chlamydia, family Chlamydiaceae) of spherical gram-negative intracellular bacteria; especially : one (C. trachomatis) that causes or is associated with various diseases of the eye and urogenital tract including trachoma, lymphogranuloma venereum, cervicitis, and some forms of urethritis
2 : a disease or infection caused by chlamydiae
chlamydialplay \-dē-əl\ adjective
Recent Examples of chlamydia from the Web
STIs are running rampant, especially among 15- to 24-year-olds (who account for two-thirds of U.S. chlamydia cases and half of gonorrhea diagnoses).
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Origin and Etymology of chlamydia
New Latin, from Greek chlamyd-, chlamys
First Known Use: 1966See Words from the same year
Medical Definition of chlamydia
1 capitalized : the type genus of the family Chlamydiaceae comprising coccoid to spherical gram-negative intracellular parasitic bacteria and including one (C. trachomatis) that causes or is associated with various diseases of the eye and genitourinary tract including trachoma, lymphogranuloma venereum, cervicitis, and some forms of nongonococcal urethritis
2plural chlamydiae \-ē-ˌē, -ˌī\play also chlamydias a: a bacterium of the genus Chlamydiab: an infection or disease caused by a bacterium of the genus Chlamydia
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