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Definition of Orthid
1. n. A brachiopod shell of the genus Orthis, and allied genera, of the family Orthidæ.
Definition of Orthid
1. Noun. (zoology) A brachiopod shell of the genus ''Orthis'' (or allied genera) in the family ''Orthidae''. ¹
¹ Source: wiktionary.com
Medical Definition of Orthid
1.