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Medical Definition of Iotrol
1. 5,5'-[Malonylbis(methylimino)]bis[N, N'-bis[2,3-dihydroxy-1-(hydroxymethyl)propyl]-2,4,6-triiodoisophthalamide];a dimeric, nonionic, water-soluble, low osmolar radiographic contrast medium, used for myelography and other nonvascular applications. Synonym: iotrol. (05 Mar 2000)