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Definition of: dual
(d′əl, dy′-) adjective
1. Denoting or relating to two.
2. Composed of two, as of two natures; twofold; binary.
—noun Gram. In some languages, as Sanskrit and Greek, the form of the noun or verb indicating its application to two persons or things; the dual number: distinguished from singular and plural. ◆ Homophone: duel. [<L dualis <duo two]
—du·al·i·ty (d·aļ′ə·tē, dy-) noun
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