(redirected from Beta-lactam Ring)

lac·tam

(lăk′tăm)

A cyclic amide, or any compound containing it, formed by the intramolecular condensation of an amino carboxylic acid.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

lactam

(ˈlæktæm)

(Elements & Compounds) chem any of a group of inner amides, derived from amino acids, having the characteristic group -CONH-

[C20: from lact(one) + am(ide)]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

lac•tam

(ˈlæk tæm)

n.

any of a group of cyclic amides characterized by the NHCO group.

[1880–85; lact (one) + am (ide)]

Mentioned in

References in periodicals archive

Cephalosporins contain beta-lactam ring in their outer structure which is cleaved by beta-lactamases.

Determination of epidemiology and antimicrobial susceptibility of extended spectrum beta lactamase producing uropathogens

For example, one major family of antibiotics is based on what's known as a "beta-lactam ring" molecule, and includes penicillins and cephalosporins.

PCR for antibiotic resistance markers--not the whole story

All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.