| Guldberg-Waage law | <chemistry> This law states that the rate of a given chemical reaction is proportional to concentration of the reactants. (09 Oct 1997) |
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| gules | The tincture red, indicated in seals and engraved figures of escutcheons by parallel vertical lines. Hence, used poetically for a red colour or that which is red. "His sev'n-fold targe a field of gules did stain In which two swords he bore; his word, "Divide and reign."" (P. Fletcher) "Follow thy drum; With man's blood paint the ground; gules, gules." (Shak) "Let's march to rest and set in gules, like suns." (Beau. & Fl) Origin: OE. Goules, F. Gueules, the same word as gueule throat, OF. Gole, goule, L. Gula. So named from the red colour of the throat. See Gullet, and cf. Gula. Source: Websters Dictionary (01 Mar 1998) |
| gulf | 1. A hollow place in the earth; an abyss; a deep chasm or basin, "He then surveyed Hell and the gulf between." (Milton) "Between us and you there is a great gulf fixed." (Luke xvi. 26) 2. That which swallows; the gullet. 3. That which swallows irretrievably; a whirlpool; a sucking eddy. "A gulf of ruin, swallowing gold." (Tennyson) 4. <geography> A portion of an ocean or sea extending into the land; a partially land-locked sea; as, the Gulf of Mexico. 5. <chemical> A large deposit of ore in a lode. <geography> Gulf Stream, the warm ocean current of the North Atlantic. It originates in the westward equatorial current, due to the trade winds, is deflected northward by Cape St. Roque through the Gulf of Mexico, and flows parallel to the coast of North America, turning eastward off the island of Nantucket. Its average rate of flow is said to be about two miles an hour. The similar Japan current, or Kuro-Siwo, is sometimes called the Gulf Stream of the Pacific. <botany> Gulf weed, a branching seaweed (Sargassum bacciferum, or sea grape), having numerous berrylike air vessels, found in the Gulf Stream, in the Sargasso Sea, and elsewhere. Origin: F. Golfe, It. Golfo, fr. Gr. Bosom, bay, gulf, LGr. Source: Websters Dictionary (01 Mar 1998) |
| Gulf War syndrome | <syndrome> A term often but inappropriately applied to various health problems experienced by US military personnel after serving in the Persian Gulf conflict of 1991; symptoms of fatigue, musculoskeletal pain, headaches, dyspnea, memory loss, and diarrhoea have been reported, but an NIH panel has concluded that evidence of a specific syndrome is lacking. Synonym: Persian Gulf syndrome. (05 Mar 2000) |
| gull | <ornithology> One of many species of long-winged sea birds of the genus Larus and allied genera. Among the best known American species are the herring gull (Larus argentatus), the great black-backed gull (L. Murinus) the laughing gull (L. Atricilla), and Bonaparte's gull (L. Philadelphia). The common European gull is Larus canus. <zoology> Gull teaser, the jager; also applied to certain species of terns. Origin: Of Celtic origin; cf. Corn. Gullan, W. Gwylan. Source: Websters Dictionary (01 Mar 1998) |
| gullet | 1. <anatomy> The tube by which food and drink are carried from the pharynx to the stomach; the oesophagus. 2. Something shaped like the food passage, or performing similar functions; as: A channel for water. <engineering> A preparatory cut or channel in excavations, of sufficient width for the passage of earth wagons. A concave cut made in the teeth of some saw blades. Origin: OE. Golet, OF. Goulet, dim. Of gole, goule, throat, F. Gueule, L. Gula; perh. Akin to Skr. Gula, G. Kenle; cf. F. Goulet the neck of a bottle, goulotte channel gutter. Cf. Gules, Gully. Source: Websters Dictionary (01 Mar 1998) |
| Gullstrand | Allvar, Swedish ophthalmologist and Nobel laureate, 1862-1930. See: biomicroscope. (05 Mar 2000) |
| Gullstrand's slitlamp | In ophthalmology, an instrument consisting of a combination of a microscope and a narrow beam of collimated light that can be narrowed into a slit and used to examine the eye. Synonym: biomicroscope, Gullstrand's slitlamp. (05 Mar 2000) Previous: slippery, slipping patella, slipping rib, slipping rib cartilage, slitNext: slit lamp, slit microscope, slit pores, slit-shellGullstrand's slitlamp -->slit lamp <apparatus, ophthalmology> A special type of examination of the anterior structures of the eye. These include the conjunctiva, sclera, lids, iris, cornea and anterior chamber. The slit lamp is a device which focuses a high intensity light beam (that can be focused as a slit) at the structures of the eye while the examiner looks through a magnifying scope. Eyedrops which numb the eyes and dilate the pupils will often be used prior to examination. The exam is not at all uncomfortable, just time consuming. Diagnoses such as foreign body (to conjunctiva, cornea or sclera), iritis, herpes keratoconjunctivitis, cornmeal ulcer, cataracts, glaucoma and corneal abrasions may be made using this exam. Some foreign bodies can even be removed using the enhanced image amplification of the slit lamp. (19 Jan 1998) |
| gulose | One of the eight pairs (d and l) of aldoses; d-gulose is an epimer of d-galactose. (05 Mar 2000) |
| gulp | To swallow eagerly, or in large draughts; to swallow up; to take down at one swallow. "He does not swallow, but he gulps it down." (Cowper) "The old man . . . Glibly gulped down the whole narrative." (Fielding) To gulp up, to throw up from the stomach; to disgorge. Origin: D. Gulpen, cf. OD. Golpe gulf. Source: Websters Dictionary (01 Mar 1998) |
| gum | The dense tissues which invest the teeth, and cover the adjacent parts of the jaws. <medicine> Gum rash, strophulus in a teething child; red gum. Gum stick, a smooth hard substance for children to bite upon while teething. Origin: OE. Gome, AS. Gama palate; akin Co G. Gaumen, OHG. Goumo, guomo, Icel. Gmr, Sw. Gom; cf. Gr. To gape. 1. A vegetable secretion of many trees or plants that hardens when it exudes, but is soluble in water; as, gum arabic; gum tragacanth; the gum of the cherry tree. Also, with less propriety, exudations that are not soluble in water; as, gum copal and gum sandarac, which are really resins. 2. <botany> See Gum tree, below. 3. A hive made of a section of a hollow gum tree; hence, any roughly made hive; also, a vessel or bin made of a hollow log. 4. A rubber overshoe. Black gum, Blue gum, British gum, etc. See Black, Blue, etc. Gum Acaroidea, the resinous gum of the Australian grass tree (Xanlhorrhoea). <zoology> Gum animal, the galago of West Africa; so called because it feeds on gums. See Galago. Gum animi or anime. See Anime. Gum arabic, a gum yielded mostly by several species of Acacia (chiefly A. Vera and A. Arabica) growing in Africa and Southern Asia; called also gum acacia. East Indian gum arabic comes from a tree of the Orange family which bears the elephant apple. Gum butea, a gum yielded by the Indian plants Butea frondosa and B. Superba, and used locally in tanning and in precipitating indigo. Gum cistus, a plant of the genus Cistus (Cistus ladaniferus), a species of rock rose. Gum dragon. See Tragacanth. Gum elastic, Elastic gum. See Caoutchouc. Gum elemi. See Elemi. Gum juniper. See Sandarac. Gum kino. See Kino. Gum lac. See Lac. Gum Ladanum, a fragrant gum yielded by several Oriental species of Cistus or rock rose. Gum passages, sap receptacles extending through the parenchyma of certain plants (Amygdalaceae, Cactaceae, etc), and affording passage for gum. Gum pot, a varnish maker's utensil for melting gum and mixing other ingredients. Gum resin, the milky juice of a plant solidified by exposure to air; one of certain inspissated saps, mixtures of, or having properties of, gum and resin; a resin containing more or less mucilaginous and gummy matter. Gum sandarac. See Sandarac. Gum Senegal, a gum similar to gum arabic, yielded by trees (Acacia Verek and A. Adansonia) growing in the Senegal country, West Africa. Gum tragacanth. See Tragacanth. Gum tree, the name given to several trees in America and Australia: The black gum (Nyssa multiflora), one of the largest trees of the Southern States, bearing a small blue fruit, the favorite food of the opossum. most of the large trees become hollow. A tree of the genus Eucalyptus. See Eucalpytus. The sweet gum tree of the United States (Liquidambar styraciflua), a large and beautiful tree with pointedly lobed leaves and woody burlike fruit. It exudes an aromatic terebinthine juice. Gum water, a solution of gum, especially. Of gum arabic, in water. Gum wood, the wood of any gum tree, esp. The wood of the Eucalyptus piperita, of new South Wales. Origin: OE. Gomme, gumme, F. Gomme, L. Gummi and commis, fr. Gr, prob. From an Egyptian form kam; cf. It. Gomma. Source: Websters Dictionary (01 Mar 1998) |
| gum ammoniac | <medicine> The concrete juice (gum resin) of an umbelliferous plant, the Dorema ammoniacum. It is brought chiefly from Persia in the form of yellowish tears, which occur singly, or are aggregated into masses. It has a peculiar smell, and a nauseous, sweet taste, followed by a bitter one. It is inflammable, partially soluble in water and in spirit of wine, and is used in medicine as an expectorant and resolvent, and for the formation of certain plasters. Origin: L. Ammoniacum, Gr. A resinous gum, said to distill from a tree near the temple of Jupiter Ammon; cf. F. Ammoniac. See Ammonite. Source: Websters Dictionary (01 Mar 1998) |
| gum arabic | <chemical> Powdered exudate from various acacia species, especially a. Senegal (leguminosae). It forms mucilage or syrup in water. Gum arabic is used as a suspending agent, excipient, and emulsifier in foods and pharmaceuticals. Pharmacological action: excipient. Chemical name: Gum arabic (12 Dec 1998) |
| gum benjamin | 1. A resinous substance, dry and brittle, obtained from the Styrax benzoin, a tree of Sumatra, Java, etc, having a fragrant odour, and slightly aromatic taste. It is used in the preparation of benzoic acid, in medicine, and as a perfume. 2. A white crystalline substance, C14H12O2, obtained from benzoic aldehyde and some other sources. 3. <botany> The spicebush (Lindera benzoin). Flowers of benzoin, benzoic acid. See Benzoic. Source: Websters Dictionary (01 Mar 1998) |
| gum contour | The shape or form of the gingiva, either natural or artificial, around the necks of the teeth. Synonym: gum contour. (05 Mar 2000) |
| Guyon's sign |
the ballottement and palpation of a floating kidney.
출처: www.merckmedicus.com/pp/us/hcp/thcp_dorlands_conte...
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| guideline |
A recommendation that leads or directs a course of action to achieve a certain goal.
출처: www.fao.org/docrep/003/x6896e/x6896e0e.htm
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| gut |
a long tube in the sharks body that food goes through to get to the stomach; the intestine
출처: library.thinkquest.org/J0110481/gloss.html
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| guanosine |
A nucleoside form of guanine.
출처: www.genpromag.com/Glossary~LETTER~G.html
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| guanosine |
A nucleoside combining the base guanine with D-ribose. One of the building blocks of DNA and RNA.
출처: www.amfar.org/cgi-bin/iowa/bridge.html
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| GU | an estimate that combines reasoning with guessing |
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| GU | estimate based on a calculation |
| GU | an estimate based on little or no information |
| GU | (computer science) any computer that is hooked up to a computer network |
| GU | a visitor to whom hospitality is extended |
| GU | a customer of a hotel or restaurant etc. |
| GU | staying temporarily |
| GU | United States journalist (born in England) noted for his syndicated homey verse (1881-1959) |
| GU | (British) an evening when members of a club or college can bring their friends as guests |
| GU | a house separate from the main house |
| GU | an estimate that combines reasoning with guessing |
| GU | a bedroom that is kept for the use of guests |