trifluoro-comb. form

Stress is usually determined by a subsequent element and vowels may be reduced accordingly. If the subsequent element is an existing word, it is likely to retain its original stress pattern, e.g. trifluoromethane Brit.

/trʌɪˌflʊərəʊˈmiːθeɪn/,

/trʌɪˌflɔːrəʊˈmiːθeɪn/, U.S.

/traɪˌflʊroʊˈmɛˌθeɪn/,

/traɪˌflɔroʊˈmɛˌθeɪn/.

Forms: before a vowel also trifluor-.

Etymology: < tri- comb. form 3 + fluoro- comb. form.

Chemistry.

A formative analogous to trichloro- comb. form, expressing the substitution of 3 atoms of fluorine for hydrogen, as in trifluoromethane or fluoroform, CHF₃, from methane, CH₄; so trifluorethylene, CF₂:CHF, from ethylene, CH₂:CH₂.

ΚΠ

1899 Jrnl. Chem. Soc. 76 i. 197 Trifluorotoluene (C₆H₅.CF₃) is not decomposed at high temperatures, and not attacked by water, alkalis.

This entry has not yet been fully updated (first published 1914; most recently modified version published online March 2022).

单词	trifluoro-
释义	trifluoro-comb. form Stress is usually determined by a subsequent element and vowels may be reduced accordingly. If the subsequent element is an existing word, it is likely to retain its original stress pattern, e.g. trifluoromethane Brit. /trʌɪˌflʊərəʊˈmiːθeɪn/, /trʌɪˌflɔːrəʊˈmiːθeɪn/, U.S. /traɪˌflʊroʊˈmɛˌθeɪn/, /traɪˌflɔroʊˈmɛˌθeɪn/. Forms: before a vowel also trifluor-. Etymology: < tri- comb. form 3 + fluoro- comb. form. Chemistry. A formative analogous to trichloro- comb. form, expressing the substitution of 3 atoms of fluorine for hydrogen, as in trifluoromethane or fluoroform, CHF₃, from methane, CH₄; so trifluorethylene, CF₂:CHF, from ethylene, CH₂:CH₂. ΚΠ 1899 Jrnl. Chem. Soc. 76 i. 197 Trifluorotoluene (C₆H₅.CF₃) is not decomposed at high temperatures, and not attacked by water, alkalis. This entry has not yet been fully updated (first published 1914; most recently modified version published online March 2022). < comb. form1899
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