Dictionary    Maps    Thesaurus    Translate    Advanced >   


Tip: Click Thesaurus above for synonyms. Also, follow synonym links within the dictionary to find definitions from other sources.

1. WordNet® 3.0 (2006)
cephalothin
    n 1: a semisynthetic analogue of cephalosporin

2. The Collaborative International Dictionary of English v.0.48
Cephalosporin \Ceph"a*lo*spor`in\
   (s[e^]f"[.a]*l[-o]*sp[=o]r`[i^]n), n. [from Cephalosporium, a
   fungus producing the first of the series discovered.] (Chem.)
   any of a class of chemical substances, some of which have
   therapeutically useful antibacterial activity, whose
   structure contains a beta-lactam ring fused to a six-membered
   ring containing a sulfur and a nitrogen atom. The first of
   the series, cephalosporin C, was discovered by G. Brotzu in
   1955 in the culture broth of a Cephalosporium species found
   off the coast of Sardinia. Other cephalosporins have been
   found to be produced by species of soil bacteria
   (actinomycetes). Many semisynthetic analogs have been tested
   for antibacterial effect, and several of them have found use
   as important clinically useful antibacterial agents, some of
   which may be taken orally for treatment of bacterial
   infections. The cephalosporins are the second class of
   beta-lactam antibiotic to be discovered, the first being the
   penicillins and more recent classes being the
   thienamycins and sulfazecins. The cephamycins are a
   variant of cephalosporins with a methoxyl group on the
   beta-lactam ring, rendering them more resistant to
   penicillinases. Among the cephalosporins which have been
   found clinically useful are cephalexin, cephaloridine,
   and cephalothin.
   [PJC]

Common Misspellings >
Most Popular Searches: Define Misanthrope, Define Pulchritudinous, Define Happy, Define Veracity, Define Cornucopia, Define Almuerzo, Define Atresic, Define URL, Definitions Of Words, Definition Of Get Up, Definition Of Quid Pro Quo, Definition Of Irreconcilable Differences, Definition Of Word, Synonyms of Repetitive, Synonym Dictionary, Synonym Antonyms. See our main index and map index for more details.

©2011-2024 ZebraWords.com - Define Yourself - The Search for Meanings and Meaning Means I Mean. All content subject to terms and conditions as set out here. Contact Us, peruse our Privacy Policy