Spelling Bee Hive found 1 result for acetylene. This page contains the same results as searching for that word in the app.
acetylene - noun; Level 5; origin: French; pronunciation: ə-ˈse-tə-lən, -ˌlēn. a colorless, flammable gas, HC≡CH, with a carbon-carbon triple bond, widely used in welding and chemical synthesis.
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