| Beer's knife | A triangular knife with a sharp point and one sharp edge, formerly used for incision for cataract. (05 Mar 2000) |
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| beer | 1. A fermented liquor made from any malted grain, but commonly from barley malt, with hops or some other substance to impart a bitter flavor. Beer has different names, as small beer, ale, porter, brown stout, lager beer, according to its strength, or other qualities. See Ale. 2. A fermented extract of the roots and other parts of various plants, as spruce, ginger, sassafras, etc. Small beer, weak beer; (fig) insignificant matters. "To suckle fools, and chronicle small beer." Origin: OE. Beor, ber, AS. Beor; akin to Fries. Biar, Icel. Bjrr, OHG. Bior, D. & G. Bier, and possibly E. Brew. 93, See Brew. Source: Websters Dictionary (01 Mar 1998) |
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| Beer, August | <person> German physicist, 1825-1863. See: Beer-Lambert law, Beer's law. (05 Mar 2000) |
| Beer, Georg | <person> Austrian ophthalmologist, 1763-1821. See: Beer's knife. (05 Mar 2000) |
| beer heart | <cardiology, pathology> A weakness of the cardiac muscle which is seen in some chronic alcoholics, may be related to a thiamin deficiency or occur for unknown reasons. Origin: Gr. Pathos = disease (27 Sep 1997) |
| beer-lambert law | The equation A=ECL, where A is the absorbance at a given wavelength of light, E is the molar extinction coefficient, C is the concentration of the molar solution, and L is the length of the light path. In words, the equation means that the concentration of a substance in moles is proportional to the absorption of a given wavelength of light by a solution of the substance. The equation is used in the study of spectroscopy. (09 Oct 1997) |
| Beer's law | The intensity of a colour or of a light ray is inversely proportional to the depth of liquid through which it is transmitted; it is concluded that the absorption is dependent upon the number of molecules in the path of the ray. Compare: Beer-Lambert law. (05 Mar 2000) |
| amputation knife | A broad-bladed knife used primarily for transecting large muscles during major amputations. (05 Mar 2000) |
| valvotomy knife | A knife used in mitral or venous valvular surgery; also called valvulotome. (05 Mar 2000) |
| gamma knife | <radiobiology> A special multi-source irradiation machine which focus a high intesity of irradiation on a small area: it is used as local therapy in especially brain tumours. This is investigational and is not part of the routine array of cancer treatments. (16 Dec 1997) |
| gamma ray knife | A beam of high energy X-rays. See: radiosurgery. (05 Mar 2000) |
| cartilage knife | A very stiff scalpel-shaped knife used in cutting cartilage. Synonym: cartilage knife, ecchondrotome. Origin: chondro-+ G. Tome, cutting (05 Mar 2000) |
| cautery knife | A knife that sears while cutting, to diminish bleeding. (05 Mar 2000) |
| Graefe's knife | A narrow-bladed knife used in making a section of the cornea. (05 Mar 2000) |
| chemical knife | Term sometimes used for restriction endonuclease. (05 Mar 2000) |
| Merrifield knife | A long, narrow, triangularly shaped knife used in gingival surgery. (05 Mar 2000) |