| quinaphthol | <drug> A drug used as an intestinal antiseptic. (09 Oct 1997) |
|---|---|
| quinaquina | Synonym: cinchona. Origin: a reduplication of Sp. Quina, cinchona (05 Mar 2000) |
| quinary | Consisting of five; arranged by fives. <zoology> Quinary system, a fanciful classification based on the hypothesis that each group contains five types. Origin: L. Quinarius, from quini five each, akin to quinque five: cf. F.quinaire. See Five. Source: Websters Dictionary (01 Mar 1998) |
| quinate | <chemistry> A salt of quinic acid. Alternative forms: kinate. Source: Websters Dictionary (01 Mar 1998) |
| quinate: NAD oxidoreductase | <enzyme> A plant enzyme converting hydroquinic acid (a derivative of the shikimate pathway) to quinic acid. The enzyme is activated by a calcium and calmodulin dependent phosphorylation. (18 Nov 1997) |
| quinazol | <chemistry> A complex nitrogenous base related to cinnoline. Alternative forms: chinazol. Origin: Quinoline + azote. Source: Websters Dictionary (01 Mar 1998) |
| quinazolines | A class of alkaloids that are derived biosynthetically from anthranilic acid. (05 Mar 2000) |
| quince | 1. The fruit of a shrub (Cydonia vulgaris) belonging to the same tribe as the apple. It somewhat resembles an apple, but differs in having many seeds in each carpel. It has hard flesh of high flavor, but very acid, and is largely used for marmalade, jelly, and preserves. 2. <botany> A quince tree or shrub. <botany> Japan quince, the small tree (Cydonia vulgaris) which produces the quince. Origin: Prob. A pl. From OE. Quyne, coin, OF. Coin, cooin, F. Coing, from L. Cydonius a quince tree, as adj, Cydonian, Gr. Cydonian, a quince, fr. Cydonia, a city in Crete, the Cydonians. Cf. Quiddany. Source: Websters Dictionary (01 Mar 1998) |
| quincewort | <botany> The squinancy. Synonym: quinsywort. Source: Websters Dictionary (01 Mar 1998) |
| Quincke | Heinrich I., German physician, 1842-1922. See: Quincke's disease, Quincke's oedema, Quincke's pulse, Quincke's puncture, Quincke's sign. (05 Mar 2000) |
| quincke's disease | This is angioneurotic oedema (or angioedema), a form of localised swelling of the deeper layers of the skin and fatty tissues beneath the skin. Hereditary angioneurotic oedema (or hereditary angioedema) is a genetic form of angioedema. Persons with it are born lacking an inhibitor protein (called c1 esterase inhibitor) that normally prevents activation of a cascade of proteins leading to the swelling of angioedema. Patients can develop recurrent attacks of swollen tissues, pain in the abdomen, and swelling of the voice box (larynx) which can compromise breathing. The diagnosis is suspected with a history of recurrent angioedema. It is confirmed by finding abnormally low levels of c1 esterase inhibitor in the blood. Treatment options include antihistamines and male steroids (androgens) that can also prevent the recurrent attacks. (17 Dec 1998) |
| Quincke's oedema | A vascular reaction involving the deep dermis or subcutaneous or submucal tissues, representing localised oedema caused by dilatation and increased permeability of the capillaries and characterised by development of giant wheals. (18 Nov 1997) |
| Quincke's pulse | The capillary pulse as appreciated in the finger and toenails during aortic regurgitation; ebb and flow is seen. Synonym: Quincke's sign. (05 Mar 2000) |
| Quincke's puncture | A diagnostic procedure where a sterile needle is introduced into the lower spine (L2) to collect cerebrospinal fluid for diagnostic purposes. Chemical analysis, cellular analysis and CSF pressure can all be measured with this procedure. This test can aid in the diagnosis of meningitis, subarachnoid haemorrhage and multiple sclerosis. (27 Sep 1997) |
| Quincke's sign | The capillary pulse as appreciated in the finger and toenails during aortic regurgitation; ebb and flow is seen. Synonym: Quincke's sign. (05 Mar 2000) |