Definition of chlamydia noun from the Oxford Advanced Learner's Dictionary

 

chlamydia

 noun
noun
BrE BrE//kləˈmɪdiə//
 
; NAmE NAmE//kləˈmɪdiə//
 
[uncountable](medical)
 
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a disease caused by bacteria, which is caught by having sex with an infected person Word Origin 1960s: modern Latin (plural), from Greek khlamus, khlamud- ‘cloak’.
See the Oxford Advanced American Dictionary entry: chlamydia