| guttural pouch | A structure in the horse which is a diverticulum of the auditory (eustachian) tube; subject to chronic infections and inflammation and frequently necessitating surgery for relief. Hartmann's pouch, a spheroid or conical pouch at the junction of the neck of the gallbladder and the cystic duct. Synonym: ampulla of gallbladder, fossa provesicalis, pelvis of gallbladder. Heidenhain pouch, a small sac or pouch of the stomach, vagally denervated and closed off from the main cavity but with an opening through the abdominal wall, fashioned for the purpose of obtaining gastric juice and for studying gastric secretion in physiologic experiments. (05 Mar 2000) |
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| guttural pulse | A pulsation felt in the throat. (05 Mar 2000) |
| guttural rale | Sound heard over the lung but resulting from upper airway obstruction. (05 Mar 2000) |
| gutturotetany | Laryngeal spasm causing a temporary stutter. Origin: L. Guttur, throat, + G. Tetanos, convulsive tension (05 Mar 2000) |
| gutwort | <botany> A plant, Globularia Alypum, a violent purgative, found in Africa. Source: Websters Dictionary (01 Mar 1998) |
| Gutzeit's test | A test for arsenic; a piece of zinc and a little sulfuric acid are added to the suspected liquid which is then boiled; a bit of filter paper with a silver nitrate solution is held in the vapor and will turn yellow if arsenic is present. (05 Mar 2000) |
| Gutzeit, Max | <person> German chemist, 1847-1915. See: Gutzeit's test. (05 Mar 2000) |
| guyana | A republic in the north of south america, east of brazil. Its capital is georgetown. It was formerly called british guiana and its history is allied with that of the region of guiana which comprised british guiana, french guiana, and dutch guiana (now suriname). It was founded about 1620 by the dutch and settled in the 18th century by many non-dutch, mainly british, to whom it was ceded in 1814. Guyana gained independence in 1966 and became a republic in 1970. The name is probably of indian origin meaning respectable, but some derive it from the guarani guai (born) + ana (kin), implying a united and interrelated race of people. (12 Dec 1998) |
| Guyon's amputation | Amputation above the malleoli, a modification of Syme's amputation. (05 Mar 2000) |
| Guyon's isthmus | An elongated constriction at the junction of the body and cervix of the uterus. Synonym: isthmus uteri, Guyon's isthmus, orificium internum uteri, os uteri internum, ostium uteri internum. (05 Mar 2000) |
| Guyon's sign | <clinical sign> Ballottement of the kidney in cases of nephroptosis, especially when there is also a renal tumour, the hypoglossal nerve lies directly upon the external carotid artery, whereby this vessel may be distinguished from the internal carotid when ligation is necessary. (05 Mar 2000) |
| Guyon, Felix | <person> French surgeon, 1831-1920. See: Guyon's amputation, Guyon's isthmus, Guyon's sign. (05 Mar 2000) |
| guzzle | To swallow liquor greedily; to drink much or frequently. "Those that came to guzzle in his wine cellar." (Milton) "Well-seasoned bowls the gossip's spirits raise, who, while she guzzles, chats the doctor's praise." (Roscommon) "To fat the guzzling hogs with floods of whey." (Gay) Origin: OP. Gosillier, prob. Orig, to pass through the throat; akin to F. Gosier throat; cf. It. Gozzo a bird's crop. Source: Websters Dictionary (01 Mar 1998) |