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1. WordNet® 3.0 (2006) |
penicillin
n 1: any of various antibiotics obtained from Penicillium molds
(or produced synthetically) and used in the treatment of
various infections and diseases
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2. The Collaborative International Dictionary of English v.0.48 |
penicillin \pen`i*cil"lin\ (p[e^]n`[i^]*s[i^]l"l[i^]n), n. [From
Penicillium, the fungus genus from which it was first
isolated.] (Chem.)
Any of a variety of substances having a structure containing
a beta-lactam ring fused to a thiirane ring, to which a
carboxyl group is attached, but most commonly interpreted as
benzyl penicillin. They are notable as powerful
antibacterial agents of relatively low toxicity which have
found extensive use in medicine for treating bacterial
infections. They are categorized as one of the classes of
beta-lactam antibiotic. They are produced naturally by some
fungi and bacteria, and industrial production processes
almost invariably start from some form of the penicillin
nucleus produced by fermentation of microorganisms. The
fermentation products are then chemically modified to produce
derivatives of enhanced potency, safety, or antibacterial
spectrum. The first penicillin to see extensive use
clinically (during World War II) was penicillin G, also
called benzypenicillin, and commonly simply "penicillin".
[PJC]
Note: [hand]The characteristic portion of the structure
characterizing a penicillin is the bicyclic structure
3,3-Dimethyl-7-oxo-4-thia-1-azabicylo[3.2.0]heptane-2-carboxylic
acid. The different penicillins have varying acyl
groups forming an amide bond with a nitrogen attached
to the 6-carbon of this nucleus. This distinguishes it
from the other classes of beta-lactam antibiotic, the
cephalosporins, thienamycins and sulfazecin.
[PJC]
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3. The Collaborative International Dictionary of English v.0.48 |
Lactam \Lac"tam\, n. [Lactone + amido.] (Chem.)
One of a series of anhydrides of an amido type, analogous to
the lactones, as oxindol; a cyclic amide.
[1913 Webster]
beta-lactam or [beta]-lactam,
(a) a lactam in which the amide bond is contained within a
four-membered ring, which includes the amide nitrogen and
the carbonyl carbon.
(b) an antibiotic containing a beta-lactam, such as a
penicillin, cephalosporin, or carbapenem; also
called a beta-lactam antibiotic. [informal, laboratory
slang]
[PJC]
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Thesaurus Results for penicillin:
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1. Moby Thesaurus II by Grady Ward, 1.0 |
Chloromycetin, Terramycin, actinomycin, amphotericin, bacitracin, carbomycin, chlortetracycline, cloxacillin, dihydrostreptomycin, erythromycin, fradicin, gramicidin, griseofulvin, methicillin, mitomycin, streptomycin, streptothricin, subtilin, tetracycline, tylocin, tyrothricin, vancomycin, viomycin |
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Common Misspellings > |
penicillin epenicillin epnicillin pepnicillin enicillin ppenicillin pneicillin peneicillin pnicillin peenicillin peincillin penincillin peicillin pennicillin penciillin peniciillin pencillin peniicillin peniicllin penicicllin peniillin peniccillin peniclilin penicililin penicllin peniciillin penicilllin penicilin penicilllin penicililn penicilliln penicilin penicilllin penicillni penicillini penicilln penicilliin penicillnin penicilli penicillinn 0enicillin p0enicillin 0penicillin )enicillin p)enicillin )penicillin oenicillin poenicillin openicillin lenicillin plenicillin lpenicillin p3nicillin pe3nicillin p3enicillin p#nicillin pe#nicillin p#enicillin p4nicillin pe4nicillin p4enicillin pwnicillin pewnicillin pwenicillin prnicillin pernicillin prenicillin psnicillin pesnicillin psenicillin pdnicillin pednicillin pdenicillin pfnicillin pefnicillin pfenicillin panicillin pinicillin ponicillin punicillin pegicillin pengicillin pegnicillin pehicillin penhicillin pehnicillin pejicillin penjicillin pejnicillin pebicillin penbicillin pebnicillin pemicillin penmicillin pemnicillin pe icillin pen icillin pe nicillin pen8cillin peni8cillin pen8icillin pen*cillin peni*cillin pen*icillin pen9cillin peni9cillin pen9icillin penucillin peniucillin penuicillin penocillin peniocillin penoicillin penjcillin penijcillin penjicillin penkcillin penikcillin penkicillin penlcillin penilcillin penlicillin penacillin penecillin penisillin penicsillin peniscillin penidillin penicdillin penidcillin penifillin penicfillin penifcillin penixillin penicxillin penixcillin penivillin penicvillin penivcillin peni illin penic illin peni cillin penic8llin penici8llin penic8illin penic*llin penici*llin penic*illin penic9llin penici9llin penic9illin penicullin peniciullin penicuillin penicollin peniciollin penicoillin penicjllin penicijllin penicjillin penickllin penicikllin penickillin peniclllin penicilllin peniclillin penicallin penicellin peniciiiin peniciliiin peniciiilin peniciooin penicilooin penicioolin penicippin penicilppin penicipplin penicikkin penicilkkin penicikklin penici,,in penicil,,in penici,,lin penici..in penicil..in penici..lin penicill8n penicilli8n penicill8in penicill*n penicilli*n penicill*in penicill9n penicilli9n penicill9in penicillun penicilliun penicilluin penicillon penicillion penicilloin penicilljn penicillijn penicilljin penicillkn penicillikn penicillkin penicillln penicilliln penicilllin penicillan penicillen penicillig penicilling penicillign penicillih penicillinh penicillihn penicillij penicillinj penicillijn penicillib penicillinb penicillibn penicillim penicillinm penicillimn penicilli penicillin penicilli n Definition commonly spelled as: Defanition or Defenition, Synonym as: Synonim, Sinonym or Sinonim, Thesaurus as: Thesorus or Thesauris, Dictionary as: Dictionery or Dictionry and Define is usually not misspelled. What does mispell meen? It Meens...
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