[free-on] /ˈfri ɒn/
a brand name for any of a class of liquid or gaseous fluorocarbon or chlorofluorocarbon products, used chiefly as refrigerants.
trademark any of a group of chemically unreactive chlorofluorocarbons used as aerosol propellants, refrigerants, and solvents
refrigerant chemical, 1932, proprietary name in U.S. for fluorocarbons used in refrigeration technology. “The name was apparently constructed from fre(eze) + -on used as an arbitrary suffix” [Flood].
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[free-kwuh n-see] /ˈfri kwən si/ noun, plural frequencies. 1. Also, frequence. the state or fact of being frequent; frequent occurrence: We are alarmed by the frequency of fires in the neighborhood. 2. rate of occurrence: The doctor has increased the frequency of his visits. 3. Physics. 4. Mathematics. the number of times a value recurs […]
noun, Radio and Television. 1. 2 (def 9). noun 1. a continuous range of frequencies, esp in the radio spectrum, between two limiting frequencies
noun, Statistics. 1. a curve representing the frequency with which a variable assumes its values.