oxyhydrogen
/ˌɒksɪˈhʌɪdrədʒ(ə)n/noun
A flammable mixture of oxygen and hydrogen, used in brazing metals, etc. Usually attributive.
- Recorded earliest in oxyhydrogen blowpipe..
Origin
Early 19th century; earliest use found in Transactions of the Society of Arts. From oxy- + hydrogen.