| 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) |
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| 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) |
| cephalohematoma |
an area of bleeding underneath one of the cranial bones that appears as raised lump on the baby's head.
Ãâó: www.uchicagokidshospital.org/online-library/conten...
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| cephalogram |
A term loosely used as a synonym for cephalometric radiograph: sometimes used to refer to a fine-line tracing on an acetate film overlay of the salient structures, landmarks and pertinent measurements, which is used for diagnostic purposes. However, measurements may be digitized directly from the film via computer.
Ãâó: www.braces.org/braces/dentists/glossary/glossary-c...
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| cephalometric analysis |
The process of evaluating dental and skeletal relationships by way of measurements obtained directly from the living head or, more commonly, from cephalometric radiographs and tracings. Refers also to the standardized sets of cephalometric measurements (eg, Downs Analysis) commonly used in the evaluation.
Ãâó: www.braces.org/braces/dentists/glossary/glossary-c...
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| cephalometric radiograph |
A standardized radiograph of the head characterized by a precisely defined relationship among x-ray source, subject and film. By convention, the distance between x-ray source and the 'center' of the subject (midsagittal plane or transporionic axis) is either 5 feet (1 52.4 cm.) or 150 cm. The distance between the midsagittal plane or transporionic axis of the subject and film is approximately 12 cm. ...
Ãâó: www.braces.org/braces/dentists/glossary/glossary-c...
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| cephalometer |
An instrument developed originally from the anthropologic cephalostat, used now on patients to obtain standardized and oriented craniofacial images on X-ray film. The design of the instrument permits longitudinal study with minimal positional and magnification error.
Ãâó: www.braces.org/braces/dentists/glossary/glossary-c...
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