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单词 diethene-
释义

diethene-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. diethene-diamine Brit. /dʌɪˌiːθiːnˈdʌɪəmiːn/, /dʌɪˌɛθiːnˈdʌɪəmiːn/, U.S. /daɪˌɛθinˈdaɪəˌmin/.
Etymology: See di- comb. form.
Chemistry.
Combined with two equivalents of ethene (C2H4), as diethene-diamine.
ΚΠ
1877 Watts Fownes's Man. Elem. Chem. (ed. 12) II. 172, 224.

Derivatives

diethenic adj.
Brit. /ˌdʌɪɪˈθɛnɪk/
,
U.S. /ˌdaɪəˈθɛnɪk/
as in diethenic alcohol(C2H4)2H2O3.
ΚΠ
1868 H. B. Jones & H. Watts Fownes's Man. Elem. Chem. (ed. 10) 656 The first products of this reaction are diethenic alcohol..and water.
This entry has not yet been fully updated (first published 1895; most recently modified version published online March 2022).
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