Lexic.us

Definition of Orthoceras

1. n. An extinct genus of Paleozoic Cephalopoda, having a long, straight, conical shell. The interior is divided into numerous chambers by transverse septa.

Medical Definition of Orthoceras

1. An extinct genus of Paleozoic Cephalopoda, having a long, straight, conical shell. The interior is divided into numerous chambers by transverse septa. Origin: NL, fr. Gr. Straight + a horn. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Orthoceras

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