nucleoside diphosphate
Definition: the pyrophosphoric ester of a nucleoside, a nucleoside in which the H of one of the ribose hydroxyls (usually the 5′) is replaced by a pyrophosphoric (diphosphoric) radical, adenosine 5′-diphosphate.
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.

