ammonite

2 ENTRIES FOUND:

am·mo·nite

noun \ˈa-mə-ˌnīt\

Definition of AMMONITE

: any of a subclass (Ammonoidea) of extinct cephalopods especially abundant in the Mesozoic age that had flat spiral shells with the interior divided by septa into chambers
am·mo·nit·ic \ˌa-mə-ˈni-tik\ adjective

Illustration of AMMONITE

Origin of AMMONITE

New Latin ammonites, from Latin cornu Ammonis, literally, horn of Ammon
First Known Use: 1758

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