Bunsen burner

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Bunsen burner,

gas burner, commonly used in scientific laboratories, consisting essentially of a hollow tube which is fitted vertically around the flame and which has an opening at the base to admit air. A smokeless, nonluminous flame of high temperature is produced. The underlying principle of the Bunsen burner is basic to common gas stoves and lamps.
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Bunsen burner

[′bən·sən ′bər·nər]
(engineering)
A type of gas burner with an adjustable air supply.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Bunsen burner

a gas burner, widely used in scientific laboratories, consisting of a metal tube with an adjustable air valve at the base
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005