nitrogen — /nuy treuh jeuhn/, n. Chem. a colorless, odorless, gaseous element that constitutes about four fifths of the volume of the atmosphere and is present in combined form in animal and vegetable tissues, esp. in proteins: used chiefly in the… … Universalium
natural gas — a combustible mixture of gaseous hydrocarbons that accumulates in porous sedimentary rocks, esp. those yielding petroleum, consisting usually of over 80 percent methane together with minor amounts of ethane, propane, butane, nitrogen, and,… … Universalium
Cell disruption by nitrogen decompression — Cell disruption by rapid decompression is one of several methods of cell disruption and is also called explosive decompression or cell bomb. Applications The technique is used to: * Homogenize cells and tissues * Release intact organelles *… … Wikipedia
Fire extinguisher — Extinguisher redirects here. Extinguisher may also refer to a candle snuffer. A stored pressure fire extinguisher … Wikipedia
environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… … Universalium
climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… … Universalium
steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying … Universalium
Atmosphere of Earth — Air redirects here. For other uses, see Air (disambiguation). Qualities of air redirects here. It is not to be confused with Air quality … Wikipedia
Argon — This article pertains to the chemical element. For other uses, see Argon (disambiguation). Argon (pronEng|ˈɑrgɒn) is a chemical element designated by the symbol Ar. Argon has atomic number 18 and is the third element in group 18 of the periodic… … Wikipedia
star — starless, adj. /stahr/, n., adj., v., starred, starring. n. 1. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. 2. Astron. any of the large, self luminous, heavenly bodies, as the sun, Polaris,… … Universalium
Wetsuit — This article is about the use of wetsuits in a range of water sports. For protective clothing specialized for scuba diving, see Diving suit. For the G.I. Joe character, see Wet Suit (G.I. Joe). Spring suit (shorty) and steamer (full suit) … Wikipedia