oxyacetylene \ox`y*a*cet"y*lene\, a. Of or pertaining to a mixture of oxygen and actylene; as, an oxyacetylene torch. [PJC]

Source: The Collaborative International Dictionary of English v.0.48
 

oxyacetylene adj : of or using a mixture of acetylene and oxygen; "an oxyacetylene torch"; "oxyacetelyne welding"

noun

a mixture of oxygen and acetylene; used to create high temperatures for cutting or welding metals

Source: WordNet (r) 2.0