agatine

adjective
ag·​at·​ine | \ ˈa-gət-ˌīn, -gə-ˌtīn, -gə-ˌtēn\

Definition of agatine

: of, relating to, or resembling agate

First Known Use of agatine

1804, in the meaning defined above

History and Etymology for agatine

International Scientific Vocabulary agate entry 1 + -ine

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