Vocabulary : Orthoceras to Orthodoxally

Orthoceras : An extinct genus of Paleozoic Cephalopoda, having a long, straight, conical shell. The interior is divided into numerous chambers by transverse septa.
Orthoceratite : An orthoceras; also, any fossil shell allied to Orthoceras.
Orthoclase : Common or potash feldspar crystallizing in the monoclinic system and having two cleavages at right angles to each other. See Feldspar.
Orthoclastic : Breaking in directions at right angles to each other; -- said of the monoclinic feldspars.
Orthodiagonal : The diagonal or lateral axis in a monoclinic crystal which is at right angles with the vertical axis.

Orthodome : See the Note under Dome, 4.
Orthodox : Sound in opinion or doctrine, especially in religious doctrine; hence, holding the Christian faith; believing the doctrines taught in the Scriptures; -- opposed to heretical and heterodox; as, an orthodox Christian. ;; According or congruous with the doctrines of Scripture, the creed of a church, the decree of a council, or the like; as, an orthodox opinion, book, etc. ;; Approved; conventional.
Orthodoxal : Pertaining to, or evincing, orthodoxy; orthodox.
Orthodoxality : Orthodoxness.
Orthodoxally : Orthodoxly.

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