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ampicillin

[ am-puh-sil-in ]
/ ˌæm pəˈsɪl ɪn /
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noun Pharmacology.
a broad-spectrum semisynthetic penicillin, C16H19N3O4S, effective against certain susceptible Gram-positive and Gram-negative bacteria.

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Origin of ampicillin

First recorded in 1965–70; probably am(inobenzyl)p(en)icillin, an alternate chemical name
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

British Dictionary definitions for ampicillin

ampicillin
/ (ˌæmpɪˈsɪlɪn) /

noun
a semisynthetic penicillin used to treat various 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

Medical definitions for ampicillin

ampicillin
[ ăm′pĭ-sĭlĭn ]

n.
A semisynthetic penicillin having a broader antibacterial spectrum of action than that of penicillin G. It is effective against gram-negative and gram-positive bacteria and used to treat gonorrhea and infections of the intestinal, urinary, and respiratory tracts.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for ampicillin

ampicillin
[ ăm′pĭ-sĭlĭn ]

An antibiotic derived from penicillin that has a broad antibacterial spectrum of action. It is effective against gram-negative and gram-positive bacteria and is used primarily to treat gonorrhea and infections of the respiratory, urinary, and intestinal tracts.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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