| dexamethasone | <drug> Steroid analogue (glucocorticoid), used as an anti-inflammatory drug. (18 Nov 1997) |
|---|---|
| dexamethasone isonicotinate | <chemical> 9-fluoro-11 beta,17,21-trihydroxy-16 alpha-methyl-pregna-1,4-diene-3,20-dione-21-isonicotinate. An anti-inflammatory, antiallergic glucocorticoid that can be administered orally, by inhalation, locally, and parenterally. It may cause water and salt retention. Pharmacological action: anti-allergic agents, steroidal anti-inflammatory agents, glucocorticoids, synthetic, glucocorticoids, topical. Chemical name: Pregna-1,4-diene-3,20-dione, 9-fluoro-11,17-dihydroxy-16-methyl-21-((4-pyridinylcarbonyl)oxy)-, (11beta,16alpha)- (12 Dec 1998) |
| dexamethasone suppression test | <endocrinology, investigation> A test that measures the response of the adrenal glands to ACTH. Dexamethasone is given to the patient and then blood cortisol levels are measured. Under normal conditions, cortisol levels should drop in response to dexamethasone. In this test one milligram of dexamethasone is administered in the morning and then the blood is drawn for analysis the following morning. Abnormal test results can indicate Cushing's syndrome. (27 Sep 1997) |
| dexamphetamine | (+)-alpha-methylphenethylamine sulfate;similar in action to racaemic amphetamine sulfate, but is more stimulating to the central nervous system; sympathomimetic and appetite depressant. Synonym: d-amphetamine sulfate, dexamphetamine. (05 Mar 2000) |
| dexamphetamine sodium phosphate | <chemical> The water-soluble ester of dexamphetamine, with the same actions and uses. (05 Mar 2000) |
| dexbrompheniramine maleate | <chemical> D-2-[p-Bromo-alpha-(2-dimethylaminoethyl)benzyl]pyridine maleate;the dextrorotatory isomer of brompheniramine; an antihistamine. (05 Mar 2000) |
| dexchlorpheniramine maleate | <chemical> D-2-[p-Chloro-alpha-(2-dimethylaminoethyl)benzyl]pyridine maleate;the dextrorotatory isomer of chlorpheniramine; an antihistamine. (05 Mar 2000) |
| dexetimide | <chemical> A muscarinic antagonist that has been used to treat neuroleptic-induced parkinsonism. Benzetimide is the (-)-enantimorph of dexetimide. Pharmacological action: antiparkinson agents, muscarinic antagonists, parasympatholytics. Chemical name: (3,4'-Bipiperidine)-2,6-dione, 3-phenyl-1'-(phenylmethyl)-, (S)- (12 Dec 1998) |
| dexiocardia | The location of the heart in the right hemithorax, either secondary to a disease process or congenital mirror-image reversal. (27 Sep 1997) |
| dexpanthenol | D-(+)-2,4-dihydroxy-N-(3-hydroxypropyl)-3,3-dimethylbutyramide;pantothenic acid with -CH2OH replacing the terminal -COOH; a cholinergic agent and a dietary source of pantothenic acid. Synonym: panthenol, pantothenyl alcohol. (05 Mar 2000) |
| dexter | <anatomy> Located on or relating to the right side. Origin: L. Fr. Dextra, neut. Dextrum (05 Mar 2000) |
| dexterity | 1. Right-handedness. 2. Readiness and grace in physical activity; skill and ease in using the hands; expertness in manual acts; as, dexterity with the chisel. "In youth quick bearing and dexterity." (Shak) 3. Readiness in the use or control of the mental powers; quickness and skill in managing any complicated or difficult affair; adroitness. "His wisdom . . . Was turned . . . Into a dexterity to deliver himself." (Bacon) "He had conducted his own defense with singular boldness and dexterity." (Hallam) Synonym: Adroitness, activity, nimbleness, expertness, skill, cleverness, art, ability, address, tact, facility, aptness, aptitude, faculty. See Skill. Origin: L. Dexteritas, fr. Dexter: cf. F. Dexterite. See Dexter. Source: Websters Dictionary (01 Mar 1998) |
| dextrad | <anatomy> Toward the right side; dextrally. Origin: L. Dextra the right hand + ad to. Source: Websters Dictionary (01 Mar 1998) |
| dextral | Right, as opposed to sinistral, or left. <zoology> Dextral shell, a spiral shell the whorls of which turn from left right, or like the hands of a watch when the apex of the spire is toward the eye of the observer. Origin: From Dexter. Source: Websters Dictionary (01 Mar 1998) |
| dextrality | Right-handedness; preference for the right hand in performing manual tasks. (05 Mar 2000) |