(chemistry) a colourless fuming liquid or gas, having a molecular formula of HF; it dissolves in water to form hydrofluoric acid and has many industrial uses including the production of Teflon and the refining of uranium; it corrodes skin, flesh and bone, and any skin contact must be avoided

(chemistry) A salt that may be prepared by the action of hydrofluoric acid on many lithium compounds, occurring naturally as griceite; its crystals are used in optical instruments, and in radiation dosimetry (based on its radiothermoluminescence).

(organic chemistry) Any organic compound containing an acyl functional group directly attached to a fluorine atom.

(chemistry) Any binary compound of oxygen and fluorine.

(inorganic chemistry) Any binary compound of chlorine and fluorine.

plural of acyl fluoride

(organic chemistry) The fluorinated alkene CH₂=CHF that is used to make polyvinyl fluoride

(organic chemistry) fluoromethane

plural of chlorine fluoride

(inorganic chemistry) The compound SO₂F₂