Dictionary.net

A light in which high illuminating power is obtained by introducing a jet of oxygen gas or of common air into the center of a flame fed with coal gas or with oil.

A light in which high illuminating power is obtained by introducing a jet of oxygen gas or of common air into the center of a flame fed with coal gas or with oil.

A very bright light made by supplying an argand gas-jet with oxygen (first used at Bude, in Cornwall).