Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A cyclic amide, or any compound containing it, formed by the intramolecular condensation of an amino carboxylic acid.
from The Century Dictionary.
- noun The name of a class of organic compounds containing the group or They are formed by the elimination of water from γ-or δ-amino acids respectively, the reaction being characteristic of these two classes of compounds. They are simple cyclicacid amides.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) One of a series of anhydrides of an amido type, analogous to the lactones, as oxindol; a cyclic amide.
- noun [informal, laboratory slang] an antibiotic containing a beta-lactam, such as a
penicillin ,cephalosporin , orcarbapenem ; also called abeta-lactam antibiotic .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun organic chemistry Any of a class of
cyclic amides , that are thenitrogen analogs oflactones , formed by heatingamino acids ; thetautomeric enol forms are known aslactims .
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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Lactacystin is a cyclic amide, which is also known as a lactam.
Not all "Lact" Words Are the Same Steve Carper 2008
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Why should you know which beta-lactam would appropriately treat a pneumonia patient with pseudomonal risk when the EMR prompts the appropriate selection for you?
More concerns about Government mandated and financed electronic medical records james gaulte 2009
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Without a cell wall the organism is resistant to the effects of penicillin and other beta-lactam antibiotics, which disrupt bacterial cell walls.
This Season���s Mean Mycoplasma ��� Sketching Our Turn With Atypical Pneumonia 2008
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In Europe, although ID physicians agree that about 40% of CAP is due to the atypicals,that beta-lactam antibiotics alone should be used anyway even though they have no activity against the atypicals.
Pneumonia guidelines-Europe versus U.S. james gaulte 2007
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In Europe, although ID physicians agree that about 40% of CAP is due to the atypicals,that beta-lactam antibiotics alone should be used anyway even though they have no activity against the atypicals.
Archive 2007-06-01 james gaulte 2007
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We know that in environments heavy in B-lactam antibiotics, especially British hospitals specializing in open wound treatment, a new variant of Staphylococcus, not observed before, started to be noticed.
Ann Coulter: No evidence for evolution? - The Panda's Thumb 2006
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* A well understood environmental change B-lactam pollution.
Ann Coulter: No evidence for evolution? - The Panda's Thumb 2006
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Its lead product, Orapem, is an orally administered, becta-lactam antibiotic.
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That change in that gene alters the resultant polymer chain just a little bit - but enough that the B-lactam mechanism no longer works.
Ann Coulter: No evidence for evolution? - The Panda's Thumb 2006
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The molecule in question had the beta lactam structure.
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