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1560s, "pertaining to a cone," also "having the shape of a cone," from conic + -al (1).
1560s, "pertaining to a cone," from Latin conicus, from Greek konikos "cone-shaped," from konos (see cone).
conical con·i·cal (kŏn'ĭ-kəl) or con·ic (-ĭk)adj. Of, relating to, or shaped like a cone.