perfluoro-comb. form
/pəˌflʊərə(ʊ)ˈbjuːteɪn/, /pəˌflɔːrə(ʊ)ˈbjuːteɪn/, U.S. /pərˌflʊroʊˌbjuˈteɪn/, /pərˌflʊroʊˈbjuˌteɪn/, /pərˌflɔroʊˌbjuˈteɪn/, /pərˌflɔroʊˈbjuˌteɪn/. Chemistry.
Forming the names of organic compounds, radicals, etc., in which hydrogen has been replaced by fluorine to the maximum extent, short of altering the characteristic functional groups of the species.
ΚΠ
1947 Industr. & Engin. Chem. Mar. 236/2 Perchlorobenzene is a high melting solid, whereas perfluorobenzene is a liquid boiling at about the same temperature as benzene.
1947 Industr. & Engin. Chem. Mar. 241/1 The members of the panel..made the recommendation that the prefix ‘perfluoro’ be used to denote complete substitution by fluorine of all positions attached to the carbon skeleton.
1971 Nomencl. Org. Chem. (I.U.P.A.C.) (ed. 2) C. 145 Halogen-containing compounds or radicals in which all hydrogen atoms, except those whose replacement would affect the nature of characteristic groups..present, have been replaced by halogen atoms of the same kind may be named by adding the prefixes ‘perfluoro-’, ‘perchloro-’,..[etc.] to the name of the corresponding non-halogenated compound or radical.
1992 N.Y. Times 15 Dec. c4/3 Although it is not expected to harm the ozone layer, perfluorobutane is a strong ‘greenhouse’ gas.
This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).
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comb. form1947