dihydro-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. dihydrostreptomycin n. Brit.

/dʌɪˌhʌɪdrə(ʊ)strɛptəˈmʌɪsɪn/, U.S.

/daɪˈˌhaɪdroʊˌstrɛptəˈmaɪsᵻn/.

Forms: before a vowel also dihydr-.

Etymology: < di- comb. form + hydro- comb. form.

Chemistry.

Having two atoms of hydrogen in combination. diˌhydrostreptoˈmycin n. a hydrogenated derivative of streptomycin with similar antibiotic properties.

ΚΠ

1868 H. B. Jones & H. Watts Fownes's Man. Elem. Chem. (ed. 10) 340 Dihydro-tetrasodic carbonate..may be regarded as a compound of the neutral and acid salts.

1946 Jrnl. Amer. Chem. Soc. 68 1390/2 Streptomycin has been catalytically hydrogenated to dihydrostreptomycin.

1951 A. Grollman Pharmacol. & Therapeutics xxii. 456 Although large doses of dihydrostreptomycin induce the same vestibular disturbances as does streptomycin, it is much less neurotoxic.

1970 R. Passmore & J. S. Robson Compan. Med. Stud. II. xx. 31/2 Dihydrostreptomycin..is now rarely used because it is more likely than streptomycin to damage the cochlear nerve and produce deafness.

This entry has not yet been fully updated (first published 1896; most recently modified version published online March 2022).

单词	dihydro-
释义	dihydro-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. dihydrostreptomycin n. Brit. /dʌɪˌhʌɪdrə(ʊ)strɛptəˈmʌɪsɪn/, U.S. /daɪˈˌhaɪdroʊˌstrɛptəˈmaɪsᵻn/. Forms: before a vowel also dihydr-. Etymology: < di- comb. form + hydro- comb. form. Chemistry. Having two atoms of hydrogen in combination. diˌhydrostreptoˈmycin n. a hydrogenated derivative of streptomycin with similar antibiotic properties. ΚΠ 1868 H. B. Jones & H. Watts Fownes's Man. Elem. Chem. (ed. 10) 340 Dihydro-tetrasodic carbonate..may be regarded as a compound of the neutral and acid salts. 1946 Jrnl. Amer. Chem. Soc. 68 1390/2 Streptomycin has been catalytically hydrogenated to dihydrostreptomycin. 1951 A. Grollman Pharmacol. & Therapeutics xxii. 456 Although large doses of dihydrostreptomycin induce the same vestibular disturbances as does streptomycin, it is much less neurotoxic. 1970 R. Passmore & J. S. Robson Compan. Med. Stud. II. xx. 31/2 Dihydrostreptomycin..is now rarely used because it is more likely than streptomycin to damage the cochlear nerve and produce deafness. This entry has not yet been fully updated (first published 1896; most recently modified version published online March 2022). < comb. form1868
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