semidine

noun semi·dine \ ˈseməˌdīn , -də̇n \

Definition of semidine

plural -s

: any of a group of bases that are ortho and para amino derivatives of diphenylamine and are usually formed by a molecular rearrangement of hydrazo compounds (as p -RC₆H₄NHNHC₆H₅→ p,p′-RC₆H₄NHC₆H₄NH₂)

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