definitions

sulfonamide

[ suhl-fon-uh-mahyd, -mid, suhl-fuh-nam-ahyd, -id ]
/ sʌlˈfɒn əˌmaɪd, -mɪd, ˌsʌl fəˈnæm aɪd, -ɪd /
SEE MORE SYNONYMS FOR sulfonamide ON THESAURUS.COM

noun Pharmacology.

sulfa drug.

RELATED WORDS

penicillin, amoxicillin, tetracycline, erythromycin, streptomycin, ampicillin

Nearby words

sulfo, sulfo group, sulfo-, sulfocarbanilide, sulfon-, sulfonamide, sulfonate, sulfonation, sulfone, sulfonic, sulfonic acid

Origin of sulfonamide

First recorded in 1900–05; sulfon(ic acid) + amide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for sulfonamide

sulfonamide

[ sŭl-fŏn′ə-mīd′, -mĭd ]

n.

Any of a group of organic sulfur compounds that includes the sulfa drugs.
sulfa drug
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for sulfonamide

sulfonamide

[ sŭl-fŏn′ə-mīd′, -mĭd ]

Any of a group of organic sulfur compounds containing the radical SO2NH2.♦ Certain sulfonamides known as sulfa drugs are used as antibiotics to treat bacterial infections.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.