- any of a group of drugs closely related in chemical structure to sulfanilamide, having a bacteriostatic rather than a bacteriocidal effect: used in the treatment of various wounds, burns, and infections.
Origin of sulfa drug
First recorded in 1935–40
Also called sulfa.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- any of a group of sulfonamide compounds that inhibit the activity of bacteria and are used in medicine to treat bacterial infections
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- Any of a group of synthetic organic compounds, derived chiefly from sulfanilamide, chemically similar to PABA and capable of inhibiting bacterial growth and activity by interfering with the metabolic processes in bacteria that require PABA.sulfonamide
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- See under sulfonamide.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.