| phosphor | A chemical substance that transforms incident electromagnetic or radioactive energy into light, as in scintillation radioactivity determinations or radiographic intensifying screens or image amplifiers. Origin: G. Phos, light, + phoros, bearing (05 Mar 2000) |
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| phosphor plate | The coated plate used in place of a radiographic film cassette in a computed radiography system. (05 Mar 2000) |
| phosphor-bronze | <chemistry> A variety of bronze possessing great hardness, elasticity, and toughness, obtained by melting copper with tin phosphide. It contains one or two per cent of phosphorus and from five to fifteen per cent of tin. Origin: Phosphor + bronze. Source: Websters Dictionary (01 Mar 1998) |
| phosphoramide mustards | <chemical> A group of nitrogen mustard compounds which are substituted with a phosphoramide group or its derivatives. They are usually cytotoxic and used as antineoplastic agent. Pharmacological action: antineoplastic agent, alkylating. (12 Dec 1998) |
| phosphoranes | Inorganic or organic compounds that contain pentavalent phosphorus and the general formula r5p. (12 Dec 1998) |
| phosphorate | <chemistry> To impregnate, or combine, with phosphorus or its compounds; as, phosphorated oil. Origin: Phosphorated; Phosphorating. Source: Websters Dictionary (01 Mar 1998) |
| phosphorated | Forming a compound with phosphorus. (05 Mar 2000) |
| phosphorescence | 1. <chemistry> Emission of light following absorption of radiation. Emitted light is of longer wavelength than the exciting radiation and is a result of decay of electrons from the triplet to the ground state. Lasts longer than fluorescence electron decay from singlet to ground state) and occurs after a longer delay. 2. <biology> Popularly misused as a term for biological luminescence, for example by fireflies. (31 Dec 1997) |
| phosphorescent | Having the property of phosphorescence. (05 Mar 2000) |
| phosphorhidrosis | The excretion of luminous sweat. Synonym: phosphoridrosis. Origin: G. Phos, light, + phoros, bearing, + hidrosis, sweating (05 Mar 2000) |
| phosphoriboisomerase | <enzyme> An enzyme catalyzing interconversion of d-ribose 5-phosphate and d-ribulose 5-phosphate; of importance in ribose metabolism and in the pentose phosphate pathway. Synonym: phosphopentose isomerase, phosphoriboisomerase. (05 Mar 2000) |
| phosphoribomutase | <enzyme> Converts ribose-1-phosphate to ribose-5-phosphate Registry number: EC 2.7.5.- (26 Jun 1999) |
| phosphoribosyl pyrophosphate | <chemical> The key substance in the biosynthesis of histidine, tryptophan, and purine and pyrimidine nucleotides. Chemical name: alpha-D-Ribofuranose, 5-(dihydrogen phosphate) 1-(trihydrogen diphosphate) (12 Dec 1998) |
| phosphoribosylaminoimidazolecarboxamide formyltransferase | <enzyme> Chemical name: 5-amino-4-imidazolecarboxamide ribotide transformylase Registry number: EC 2.1.2.3 Synonym: aicar transformylase, aicar formyltransferase, aicartfase, aminoimidazolecarboxamide ribonucleotide transformylase (26 Jun 1999) |
| phosphoribosylaminopyrimidine deaminase | <enzyme> Intermediate in riboflavin biosynthesis Chemical name: 2,5-diamino-6-oxy-4-(5'-phosphoribosylamino) pyrimidine deaminase Registry number: EC 3.5.4.- (26 Jun 1999) |
Synonyms : Mustards, Phosphoramide
Synonyms :
Synonyms : Pyrophosphate, Phosphoribosyl
Synonyms : AICAR Formyltransferase, AICAR Transformylase, AICARTFase, Aminoimidazolecarboxamide Ribonucleotide Transformylase, Formyltransferase, AICAR, Formyltransferase, Phosphoribosylaminoimidazolecarboxamide, Ribonucleotide Transformylase, Aminoimidazolecarboxamide
Synonyms : 2-Amino-N-Ribosylacetamide 5'-Phosphate Transformylase, 5'-Phosphoribosylglycinamide Transformylase, GAR Formyltransferase, GAR Transformylase, GARTFase, Glycinamide Ribonucleotide Transformylase, Glycinamideribotide Transformylase, Formyltransferase, GAR
| phospholipid |
Main lipid component of cell membranes. Phospholipids are a heterogeneous type of molecule composed of glycerol, phosphate, two fatty acid residues, and 'headgroups' with different chemical properties. The organization of phospholipids in cell membranes is known as phospholipid bilayer where the fatty acid residues face the center of the membrane (hydrophobic or water insoluble) and the headgroups forming the surface of the membrane. ...
출처: www.whatislife.com/glossary.htm
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| phospholipid |
These molecules make up an important part of cell membranes. They are made up of a phosphate component and a lipid component. The lipid is water-hating, while the phosphate is water-loving. These properties help determine the structure of a membrane and facilitate the movement of material in and out of the cell.
출처: www.biobasics.gc.ca/english/View.asp
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| phosphorus |
(P) Also called phosphate or phosphoric acid. Major element essential to the growth and vitality of African Violets. One of the three primary elements. Phosphorus aids in the production of healthy roots and plays a vital role in the production of flowers.
출처: www.optimara.com/optimaraglossary/p-phy.html
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| phosphate |
A normal chemical in blood and urine. Usually associated with stone disease as an inhibitor although in some stones such as calcium phosphate or struvite it can increase stone risk. One of the important chemicals to measure in any metabolic workup. Low levels of phosphate in the blood will cause an increase in Vitamin D activation and subsequent increase in intestinal absorption of phosphate and calcium.
출처: www.kidneystonesbook.net/glossary.html
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| phosphor- |
Substance which glows when struck by electrons. The back of a cathode ray tube face is coated with phosphor.
출처: www.wrightcolorgraphics.com/p.htm
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