phenoxy-comb. form
Chemistry.
1. Forming names of compounds containing the group —OC6H5, in which a phenyl group is linked through an oxygen atom.
ΚΠ
1879 Jrnl. Chem. Soc. 36 642 (heading) Phenoxypropionic acid.
1900 E. F. Smith tr. V. von Richter Org. Chem. (ed. 3) II. 146 Phenoxyacetone,..C6H5O.CH2.CO.CH3, boiling at 230°, is condensed by concentrated sulphuric acid to methyl cumarone.
1926 D. W. MacArdle Use of Solvents in Synthetic Org. Chem. iv. 62 Marvel and Tanenbaum found that if in the preparation of phenoxybutyl alcohol, ethyl alcohol dried over lime was used as solvent, yields of not over 45% were obtained.
1954 W. J. Hickinbottom in E. H. Rodd Chem. Carbon Compounds III a. viii. 426 By the action of alcoholic potash, phenoxyacetylene is formed, an unstable oil.
2.
phenoxyacetic adj. 
/fᵻˌnɒksɪəˈsɛtɪk/, /fɛˌnɒksɪəˈsiːtɪk/, /fɛˌnɒksɪəˈsɛtɪk/, /fɛˌnɑksiəˈsidɪk/ (also †phenoxacetic) phenoxyacetic acid, a colourless, crystalline, solid acid, C6H5OCH2COOH; a substituted derivative of this, esp. any of various chlorinated derivatives used as herbicides.
Brit. /fᵻˌnɒksɪəˈsiːtɪk/
, /fᵻˌnɒksɪəˈsiːtɪk//fᵻˌnɒksɪəˈsɛtɪk//fɛˌnɒksɪəˈsiːtɪk//fɛˌnɒksɪəˈsɛtɪk/U.S. /fəˌnɑksiəˈsidɪk/
, /fəˌnɑksiəˈsidɪk//fɛˌnɑksiəˈsidɪk/ΘΚΠ
the world > matter > chemistry > organic chemistry > ether > [noun] > derivatives
phenoxyacetic acid1879
Tween1941
1879 Jrnl. Chem. Soc. 36 322 The author [sc. P. Fritzsche]..has undertaken the investigation of oxyphenylacetic acid,..which was discovered and described by Heintz.., and named by him phenoxacetic acid.
1880 Jrnl. Chem. Soc. 38 318 The preparation of phenoxyacetic acid is described at length.
1946 H. C. Long & W. E. Brenchley Suppression of Weeds (ed. 2) xiii. 62 As a result of the work carried out..at Jealott's Hill Research Station a range of phenoxyacetic acid products were discovered, of which Methoxone (4-chlor-2-methylphenoxyacetic acid) was finally chosen.
1959 Jrnl. Exper. Bot. 10 33 (heading) Factors controlling the uptake of phenoxyacetic acids by Lemna minor.
1993 Jrnl. Chromatogr. 643 331/1 To increase their effect, phenoxyacetic acids are frequently used in combination with other herbicides.
phenoxymethylpenicillin n. /fᵻˌnɒksɪmɛθʌɪlpɛnᵻˈsɪlɪn/, /fᵻˌnɒksɪmɛθ(ᵻ)lpɛnᵻˈsɪlɪn/, /fɛˌnɒksɪmiːθʌɪlpɛnᵻˈsɪlɪn/, /fɛˌnɒksɪmɛθʌɪlpɛnᵻˈsɪlɪn/, /fɛˌnɒksɪmɛθ(ᵻ)lpɛnᵻˈsɪlɪn/, /fɛˌnɑksiˌmɛθ(ə)lˌpɛnəˈsɪlᵻn/ a semi-synthetic penicillin; 6-phenoxyacetamidopenicillanic acid, C16H18N2O5S.
Brit. /fᵻˌnɒksɪmiːθʌɪlpɛnᵻˈsɪlɪn/
, /fᵻˌnɒksɪmiːθʌɪlpɛnᵻˈsɪlɪn//fᵻˌnɒksɪmɛθʌɪlpɛnᵻˈsɪlɪn//fᵻˌnɒksɪmɛθ(ᵻ)lpɛnᵻˈsɪlɪn//fɛˌnɒksɪmiːθʌɪlpɛnᵻˈsɪlɪn//fɛˌnɒksɪmɛθʌɪlpɛnᵻˈsɪlɪn//fɛˌnɒksɪmɛθ(ᵻ)lpɛnᵻˈsɪlɪn/U.S. /fəˌnɑksiˌmɛθ(ə)lˌpɛnəˈsɪlᵻn/
, /fəˌnɑksiˌmɛθ(ə)lˌpɛnəˈsɪlᵻn//fɛˌnɑksiˌmɛθ(ə)lˌpɛnəˈsɪlᵻn/ΘΚΠ
the world > health and disease > healing > medicines or physic > medicines for specific purpose > antibiotics > [noun] > penicillin > semi-synthetic
phenoxymethylpenicillin1947
Penbritin1959
phenethicillin1960
ampicillin1961
oxacillin1962
ticarcillin1972
1947 Science 28 Nov. 505/1 A high percentage of the penicillin was isolated in a single fraction which was shown to be the new phenoxymethylpenicillin.
1959 Times 6 Mar. 13/6 A preparation of penicillin—penicillin V, or phenoxymethylpenicillin—was produced which was not destroyed by the acid contents of the stomach.
1993 S. J. Ettinger Pocket Compan. Textbk. Vet. Internal Med. li. 174 Benzylpenicillin G and phenoxymethylpenicillin (penicillin V) are the two most commonly employed natural penicillins used in veterinary medicine.
This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).
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comb. form1879