peroxy-comb. form

Stress is usually determined by a subsequent element and vowels may be reduced accordingly. Some degree of stress is always maintained on the second syllable. If the subsequent element is an existing word, it is likely to retain its original stress pattern, e.g. peroxyacyl Brit.

/pəˌrɒksɪˈeɪsʌɪl/,

/pəˌrɒksɪˈasɪl/, U.S.

/pəˌrɑksiˈæs(ə)l/.

Origin: Formed within English, by derivation. Etymons: per- prefix, oxy- comb. form².

Etymology: < per- prefix + oxy- comb. form², after peroxide n.Found in a number of formations exemplified below and also in peroxynitrate n., peroxynitric adj., peroxynitrite n.

Chemistry.

Originally: containing a larger proportion of oxygen than the parent compound. Now (esp. in organic chemistry): containing a peroxide group. Cf. peroxo- comb. form.

1. Prefixed to the names of chemical compounds.

ΚΠ

1878 Jrnl. Chem. Soc. 34 237 The relation between hæmatin and peroxyhæmoglobin must be sought by investigating the bearing of the albumin.

1900 Chem. News 16 Feb. 83/2 We thus obtain a microcrystalline compound, the peroxysulphate of silver, which is decomposed by warm water.

1975 J. O. Schreck Org. Chem. iii. 60 Acyl radicals are precursors of peroxyacyl nitrates, which are lacrimators often associated with smog.

2. Preceding words other than chemical names. Often without hyphen, functioning as an attributive adjective. Cf. peroxo- comb. form.Examples without hyphen may be interpreted as attributive use of a corresponding noun.

ΚΠ

1912 Jrnl. Chem. Soc. 102 ii. 156 The reaction may be considered a general one for differentiating between three peroxy-salts and hydrogen peroxide additive products.

1956 Nature 28 Jan. 182/1 Hydrogen in and on the metal now becomes anodic, and by reaction with oxygen doubtless goes into transient peroxy compounds.

1961 A. G. Davies Org. Peroxides iii. 55 There are three important types of acyl peroxides—the peroxyacids,..the peroxyesters,..and the diacyl peroxides.

1973 E. A. V. Ebsworth et al. in J. C. Bailar et al. Comprehensive Inorg. Chem. II. xxii. 780 The peroxy-group may replace an oxygen atom as a bridge between two other groups, giving compounds such as Me₃SnOOSnMe₃.

1991 D. T. Sawyer Oxygen Chem. vii. 162 The peroxy radical (ROO·)..is an oxidant that is readily reduced by O₂⁻· to form the peroxy anion (ROO⁻).

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).

单词	peroxy-
释义	peroxy-comb. form Stress is usually determined by a subsequent element and vowels may be reduced accordingly. Some degree of stress is always maintained on the second syllable. If the subsequent element is an existing word, it is likely to retain its original stress pattern, e.g. peroxyacyl Brit. /pəˌrɒksɪˈeɪsʌɪl/, /pəˌrɒksɪˈasɪl/, U.S. /pəˌrɑksiˈæs(ə)l/. Origin: Formed within English, by derivation. Etymons: per- prefix, oxy- comb. form². Etymology: < per- prefix + oxy- comb. form², after peroxide n.Found in a number of formations exemplified below and also in peroxynitrate n., peroxynitric adj., peroxynitrite n. Chemistry. Originally: containing a larger proportion of oxygen than the parent compound. Now (esp. in organic chemistry): containing a peroxide group. Cf. peroxo- comb. form. 1. Prefixed to the names of chemical compounds. ΚΠ 1878 Jrnl. Chem. Soc. 34 237 The relation between hæmatin and peroxyhæmoglobin must be sought by investigating the bearing of the albumin. 1900 Chem. News 16 Feb. 83/2 We thus obtain a microcrystalline compound, the peroxysulphate of silver, which is decomposed by warm water. 1975 J. O. Schreck Org. Chem. iii. 60 Acyl radicals are precursors of peroxyacyl nitrates, which are lacrimators often associated with smog. 2. Preceding words other than chemical names. Often without hyphen, functioning as an attributive adjective. Cf. peroxo- comb. form.Examples without hyphen may be interpreted as attributive use of a corresponding noun. ΚΠ 1912 Jrnl. Chem. Soc. 102 ii. 156 The reaction may be considered a general one for differentiating between three peroxy-salts and hydrogen peroxide additive products. 1956 Nature 28 Jan. 182/1 Hydrogen in and on the metal now becomes anodic, and by reaction with oxygen doubtless goes into transient peroxy compounds. 1961 A. G. Davies Org. Peroxides iii. 55 There are three important types of acyl peroxides—the peroxyacids,..the peroxyesters,..and the diacyl peroxides. 1973 E. A. V. Ebsworth et al. in J. C. Bailar et al. Comprehensive Inorg. Chem. II. xxii. 780 The peroxy-group may replace an oxygen atom as a bridge between two other groups, giving compounds such as Me₃SnOOSnMe₃. 1991 D. T. Sawyer Oxygen Chem. vii. 162 The peroxy radical (ROO·)..is an oxidant that is readily reduced by O₂⁻· to form the peroxy anion (ROO⁻). This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < comb. form1878
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