| L-Spar | asparaginase (Elspar) |
|---|---|
| SPAR | sensitivity prediction by acoustic reflex |
| iceland spar | <chemical> A transparent variety of calcite, the best of which is obtained in Iceland. It is used for the prisms of the polarizcope, because of its strong double refraction. Cf. Calcite. Source: Websters Dictionary (01 Mar 1998) |
|---|
| Iceland disease | An epidemic disease characterised by stiffness of the neck and back, headache, diarrhoea, fever, and localised muscular weakness; restricted almost exclusively to adults, affecting women more than men; probably viral in origin. Synonym: Akureyri disease, benign myalgic encephalomyelitis, epidemic myalgic encephalomyelitis, Iceland disease. (05 Mar 2000) |
|---|---|
| iceland moss | <botany> A kind of lichen (Cetraria Icelandica) found from the Arctic regions to the North Temperate zone. It furnishes a nutritious jelly and other forms of food, and is used in pulmonary complaints as a demulcent. Source: Websters Dictionary (01 Mar 1998) |
| rhomb spar | <chemical> A variety of dolomite. Source: Websters Dictionary (01 Mar 1998) |
| heavy spar | <chemical> Native barium sulphate or barite, so called because of its high specific gravity as compared with other non-metallic minerals. Source: Websters Dictionary (01 Mar 1998) |
| shiver-spar | <chemical> A variety of calcite, so called from its slaty structure. Synonym: slate spar. Origin: Cf. G. Schiefer-spath. Source: Websters Dictionary (01 Mar 1998) |
| spar | 1. A general term any round piece of timber used as a mast, yard, boom, or gaff. 2. Formerly, a piece of timber, in a general sense; still applied locally to rafters. 3. The bar of a gate or door. Spar buoy, a torpedo carried on the end of a spar usually projecting from the bow of a vessel, and intended to explode upon contact with an enemy's ships. Origin: OE. Sparre; akin to D. Spar, G. Sparren, OHG. Sparro, Dan.& Sw. Sparre, Icel. Sparri; of uncertain origin. 171. Cf. Spar. <chemical> An old name for a nonmetallic mineral, usually cleavable and somewhat lustrous; as, calc spar, or calcite, fluor spar, etc. It was especially used in the case of the gangue minerals of a metalliferous vein. Blue spar, Cube spar, etc. See Blue, Cube, etc. Origin: AS. Spaer in spaerstan chalkstone; akin to MHG. Spar, G. Sparkalk plaster. Source: Websters Dictionary (01 Mar 1998) |
| derbyshire spar | <chemical> A massive variety of fluor spar, found in Derbyshire, England, and wrought into vases and other ornamental work. Source: Websters Dictionary (01 Mar 1998) |
| fluor spar | <chemical> Calcium fluoride, a mineral of many different colours, white, yellow, purple, green, red, etc, often very beautiful, crystallizing commonly in cubes with perfect octahedral cleavage; also massive. It is used as a flux. Some varieties are used for ornamental vessels. Also called fluor spar, or simply fluor. Source: Websters Dictionary (01 Mar 1998) |
| iceland spar | a transparent calcite found in Iceland and used in polarizing microscopes |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|