| BSI | behavior status inventory; blood stream infection; borderline syndrome index; bound serum iron; brai... |
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| MSU | maple sugar urine; maple syrup urine; medical studies unit; mid-stream urine; monosodium urate; myoc... |
| BSF | Blood stream forms |
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| USF | Up-stream stimulatory factor |
| MS | main stream |
| SS | side-stream |
| plant transpiration | The loss of water vapor by plants to the atmosphere. It occurs mainly from the leaves through pores (stomata) whose primary function is gas exchange. The water is replaced by a continuous column of water moving upwards from the roots within the xylem vessels. (12 Dec 1998) |
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| pulmonary transpiration | The passage of water vapor from the blood into the air via the respiratory tract. (05 Mar 2000) |
| transpiration | Loss of water vapour from land plants into the atmosphere, causing movement of water through the plant from the soil to the atmosphere via roots, shoot and leaves. Occurs mainly through the stomata. (18 Nov 1997) |
| stream | To send forth in a current or stream; to cause to flow; to pour; as, his eyes streamed tears. "It may so please that she at length will stream Some dew of grace into my withered heart." (Spenser) 2. To mark with colours or embroidery in long tracts. "The herald's mantle is streamed with gold." (Bacon) 3. To unfurl. To stream the buoy. See Buoy. 1. To issue or flow in a stream; to flow freely or in a current, as a fluid or whatever is likened to fluids; as, tears streamed from her eyes. "Beneath those banks where rivers stream." (Milton) 2. To pour out, or emit, a stream or streams. "A thousand suns will stream on thee." (Tennyson) 3. To issue in a stream of light; to radiate. 4. To extend; to stretch out with a wavy motion; to float in the wind; as, a flag streams in the wind. Origin: Streamed; Streaming. Source: Websters Dictionary (01 Mar 1998) |
| stream class | Classification of streams based on the present and foreseeable uses made of the water, and the potential effects of on-site changes on downstream uses. Four classes are defined (05 Dec 1998) |
| stream-type fish | Fish that rear for a year or more in a stream. (09 Oct 1997) |
| two-stream amplifier | <radiobiology> Microwave amplifier based on the two-stream instability. (09 Oct 1997) |
| two-stream instability | <radiobiology> Instability which can develop when a stream of particles of one type has a velocity distribution with its peak well separated from that of another type of particle through which it is flowing. A stream of energetic electrons passing through a cold plasma can, for example: excite ion waves which will grow rapidly in magnitude at the expense of the kinetic energy of the electrons. (09 Oct 1997) |
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