achla·​myd·​e·​ous | \ ¦ā-klə-ˈmi-dē-əs, ˌa-klə-\

Definition of achlamydeous

: of, relating to, or characteristic of the Achlamydeae often, of flowers : lacking both calyx and corolla

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First Known Use of achlamydeous

1830, in the meaning defined above

History and Etymology for achlamydeous

a- entry 2 + chlamyd- + -eous

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The first known use of achlamydeous was in 1830

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