Word Study
ortho- |
orthoboric acid |
orthocarbonic |
orthocenter |
orthoceras |
orthoceratite
| orthochorea
| orthochromatic film
| orthoclase
| orthoclastic
| orthodiagonal
orthoceratite
CIDE DICTIONARY
orthoceratite, n. [Ortho- + Gr. , , a horn.].
An orthoceras; also, any fossil shell allied to Orthoceras. [1913 Webster]
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