Added 9 October 2026 oxyacetylene noun Categories: NatureRare Words noun ! Definition from WordNet 3.1, Princeton University. More about oxyacetylene at Wordnik → Where our words come from → A mixture of oxygen and acetylene; used to create high temperatures for cutting or welding metals. Related Words: fueledblowpipetorcharylacetyleneacetyleneacetylidedialkylacetylenecyanoacetylenehaloacetyleneoxyhydrogen Back to today's word