[fur] 
| 1. | any coniferous tree belonging to the genus Abies, of the pine family, characterized by its pyramidal style of growth, flat needles, and erect cones. |
| 2. | the wood of such a tree. |
| far-infrared radiation. |
| the longer wavelengths of electromagnetic radiation in the infrared region of the spectrum, beyond the red end of the visible spectrum, from 50 to 1000 micrometers. Abbreviation: FIR |
.| fir (fûr) n.
[Middle English firre, probably of Scandinavian origin; see perkwu- in Indo-European roots.] fir'ry adj. |
| far-infrared radiation (fär'ĭn'frə-rěd') Pronunciation Key
Infrared electromagnetic radiation of very long wavelengths, in the range of 2-50 microns. It is used in medicine to provide a penetrating heat to the body. Also called far-red radiation. |
FIR
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(1999-10-14)
Fir
the uniform rendering in the Authorized Version (marg. R.V., "cypress") of _berosh_ (2 Sam. 6:5; 1 Kings 5:8, 10; 6:15, 34; 9:11, etc.), a lofty tree (Isa. 55:13) growing on Lebanon (37:24). Its wood was used in making musical instruments and doors of houses, and for ceilings (2 Chr. 3:5), the decks of ships (Ezek. 27:5), floorings and spear-shafts (Nah. 2:3, R.V.). The true fir (abies) is not found in Palestine, but the pine tree, of which there are four species, is common. The precise kind of tree meant by the "green fir tree" (Hos. 14:8) is uncertain. Some regard it as the sherbin tree, a cypress resembling the cedar; others, the Aleppo or maritime pine (Pinus halepensis), which resembles the Scotch fir; while others think that the "stone-pine" (Pinus pinea) is probably meant. (See PINE.)
| FIR far infrared |