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)

Orthoceras Pictures

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Lexicographical Neighbors of Orthoceras

orthobrannerite
orthobunyavirus
orthobunyaviruses
orthocaine
orthocarbonate
orthocarbonates
orthocarbonic
orthocarbonic acid
orthocenter
orthocenters
orthocentre
orthocentres
orthocentric
orthocephalic
orthocephalous
orthoceras (current term)
orthoceratite
orthoceratites
orthochamosite
orthochorea
orthochromatic
orthochromatic film
orthochromophil
orthochronous
orthochrysotile
orthochrysotiles
orthoclase
orthoclases
orthoclastic
orthocrasia

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