blowpipe

/bloh"puyp'/, n.
1. a tube through which a stream of air or gas is forced into a flame to concentrate and increase its heating action.
2. Also called blow-iron, blowtube. Glass Blowing. a long metal pipe used to gather and blow the molten glass in making hollowware.
3. blowgun.
4. Med. an instrument used to observe or clean a cavity.
[1675-85; BLOW2 + PIPE1]

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▪ torch burner
      a small tubular instrument for directing a jet of air or other gas into a flame in order to concentrate and increase the flame's heat. A blowpipe is usually operated directly by mouth, but a small bellows may also be used.

      In mineralogy, the blowpipe technique for analyzing ores was developed by the Swedish mineralogist Baron Axel Fredrik Cronstedt. Its application in qualitative analysis was due to the work of the Swedish chemist Jöns Jacob Berzelius and the German mineralogist Johann Hausmann. By placing a substance in the flame of a blowpipe, information may be obtained as to its general nature by the changes it undergoes during heating and by the residue that remains. By treating the residue with certain reagents and again heating, specific information as to certain elements may be obtained.

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Universalium. 2010.

Look at other dictionaries:

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  • blowpipe — ► NOUN 1) a weapon consisting of a long tube through which an arrow or dart is blown. 2) a long tube by means of which molten glass is blown …   English terms dictionary

  • blowpipe — [blō′pīp΄] n. 1. a small tube used to force air or gas into a flame to intensify and concentrate its heat 2. a metal tube used in glass blowing 3. BLOWGUN …   English World dictionary

  • blowpipe — UK [ˈbləʊˌpaɪp] / US [ˈbloʊˌpaɪp] noun [countable] Word forms blowpipe : singular blowpipe plural blowpipes a weapon consisting of a small narrow tube through which someone can blow small arrows or stones …   English dictionary

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  • blowpipe — Synonyms and related words: acetylene welder, automatic, bellows, blast lamp, blower, blowgun, blowtorch, blowtube, burner, firearm, flamethrower, gat, gun, handgun, heater, musket, peashooter, piece, pistol, repeater, revolver, rifle, rod, sawed …   Moby Thesaurus

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