a. [ L. chlamydatus dressed in a military cloak. See Chlamys. ] (Zool.) Having a mantle; -- applied to certain gastropods. [ 1913 Webster ]

n. a coccoid rickettsia which may infect birds and mammals; it causes infections of eyes and lungs and the genitourinary tract. [ WordNet 1.5 ]

prop. n. A natural family of gram-negative bacteria which are parasites in warm-blooded vertebrates.
Syn. -- family Chlamydiaceae. [ WordNet 1.5 ]

prop. n. A natural family of green algae some of which are colored red by hematochrome.
Syn. -- family Chlamydomonadaceae. [ WordNet 1.5 ]

prop. n. The type genus of the Chlamydomonadaceae; they are solitary biflagellated plantlike algae common in fresh water and damp soil. They multiply freely and are often a pest around filtration plants.
Syn. -- genus Chlamydomonas. [ WordNet 1.5 ]

n. a genus of frilled lizards.
Syn. -- genus Chlamydosaurus. [ WordNet 1.5 ]

n. [ Gr. &unr_; cloak + fe`rein to bear. ] (Zool.) A small South American edentate (Chlamyphorus truncatus, and Chlamyphorus retusus) allied to the armadillo. It is covered with a leathery shell or coat of mail, like a cloak, attached along the spine. [ 1913 Webster ]

‖n.; pl. E. Chlamyses L. Chlamydes [ L., from Gr. &unr_;. ] A loose and flowing outer garment, worn by the ancient Greeks; a kind of cloak. [ 1913 Webster ]