Wiktionary
sulphur hexafluoride
n. (alternative spelling of sulfur hexafluoride English)
WordNet
sulphur hexafluoride
n. a colorless gas that is soluble in alcohol and ether; a powerful greehouse gas widely used in the electrical utility industry [syn: sulfur hexafluoride]
Usage examples of "sulphur hexafluoride".
When Sax had been made head of the terraforming project in 2042, he had immediately initiated the construction of factories to produce and release into the atmosphere a special greenhouse gas mix, composed mostly of carbon tetrafluoride, hexafluoroethane, and sulphur hexafluoride, along with some methane and nitrous oxide.