noun: (uncountable) Abbreviation of high-functioning autism. [(psychiatry) A term applied to people with autism who are deemed to be cognitively "higher functioning" (with an IQ of 70 or greater) than other people with autism.]
noun: (chemistry, countable) Abbreviation of hydrofluoroalkane. [(chemistry) Any of various gaseous alkanes that contain carbon, fluorine, and hydrogen and are used especially as aerosol propellants in metered-dose inhalers.]
