prodrug A substance which, after metabolic action in the body, is coverted to an active drug. prodrug drug modified by biotransformation (i.e. metabolic processes) to achieve desired pharmacological action proÂ·drug (prÅ'drÅ­g) A class of drugs, the pharmacologic action of which results from conversion by metabolic processes within the body.
verb (used without object), sagged, sagging. 1. to sink or bend downward by weight or pressure, especially in the middle: The roof sags. 2. to hang down unevenly; droop: Her skirt was sagging.
Initially known as âself-edgeâ, the selvedge is the narrow, tightly woven band on both edges of the denim . A selvedge end prevents the edge of the denim from unravelling and shows a clean, finished look. Old shuttle looms produce denim where selvedges are closed.