| cephalosporanic acids | <chemical> A family of organic compounds that are composed of a dihydrothiazine ring and a beta-lactam ring. Pharmacological action: cephalosporins. (12 Dec 1998) |
|---|---|
| cephalosporin | <drug> A large class of antibiotics similar both chemically and in their mode of action to penicillin's. They are tetracyclic triterpene broad-spectrum antibiotics first isolated from the culture filtrates of mediterranean fungus acremonium (cephalosporium acremonium). They contain the beta-lactam moiety thia-azabicyclo-octenecarboxylic acid also called 7-aminocephalosporanic acid and are effective against gram-positive bacteria. Examples include: Keflex, Ceftin, Rocephin, Cefzil, Monocid, Keftab, Vantin, Ceclor, Duricef, Suprax and Cefobid. (25 Jun 1999) |
| cephalosporin 7-alpha-hydroxylase | <enzyme> A dioxygenase from streptomyces clavuligerus; requires 2-oxoglutarate, fe2+ and a reducing agent such as ascorbic acid Registry number: EC 1.14.11.- (26 Jun 1999) |
| cephalosporin C transaminase | <enzyme> Acts on cephalosporin c and a number of d-amino acids; alpha-ketoadipic and alpha-ketoglutaric acids act as acceptors Registry number: EC 2.6.1.- (26 Jun 1999) |
| cephalosporin resistance | <microbiology> Non-susceptibility of an organism to the action of the cephalosporins. (12 Dec 1998) |
| cephalosporinase | <enzyme> Registry number: EC 3.5.2.- (12 Dec 1998) |
| Cephalosporium | Former name of Acremonium. (05 Mar 2000) |
| cephalostat | Synonym: cephalometer. Origin: cephalo-+ G. Statos, stationary (05 Mar 2000) |
| cephalothin | <chemical> A cephalosporin antibiotic. Pharmacological action: cephalosporins. Chemical name: 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 3-((acetyloxy)methyl)-8-oxo-7-((2-thienylacetyl)amino)-, (6R-trans)- (12 Dec 1998) |
| cephalothoracic | Relating to the head and the chest. (05 Mar 2000) |
| cephalothoracopagus | Conjoined twins with the bodies fused in the cephalic and thoracic regions. See: conjoined twins. Origin: cephalo-+ G. Thorax, chest, + pagos, something fixed (05 Mar 2000) |
| cephalothoracopagus asymmetros | A form of cephalothoracopagus in which only one of the faces is well developed. Synonym: cephalothoracopagus asymmetros. (05 Mar 2000) |
| cephalothoracopagus disymmetros | A form of cephalothoracopagus with the fused head showing equally developed faces directed laterally. (05 Mar 2000) |
| cephalothoracopagus monosymmetros | A form of cephalothoracopagus in which only one of the faces is well developed. Synonym: cephalothoracopagus asymmetros. (05 Mar 2000) |
| cephalotome | Instrument formerly used for cutting into the foetal head to permit its compression in cases of dystocia. Origin: cephalo-+ G. Tome, a cutting (05 Mar 2000) |