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单词 tetrakis-
释义

tetrakis-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 first syllable. If the subsequent element is an existing word, it is likely to retain its original stress pattern, e.g. tetrakisazobenzene Brit. /ˌtɛtrəkɪsˌazə(ʊ)ˈbɛnziːn/, /ˌtɛtrəkɪsˌazə(ʊ)bɛnˈziːn/, /ˌtɛtrəkɪsˌeɪzə(ʊ)ˈbɛnziːn/, /ˌtɛtrəkɪsˌeɪzə(ʊ)bɛnˈziːn/, U.S. /ˌtɛtrəkɪsˌæzoʊˈbɛnˌzin/, /ˌtɛtrəkɪsˌæzoʊˌbɛnˈzin/, /ˌtɛtrəkɪsˌeɪzoʊˈbɛnˌzin/, /ˌtɛtrəkɪsˌeɪzoʊˌbɛnˈzin/.
Origin: A borrowing from Greek. Etymon: Greek τετράκις.
Etymology: < ancient Greek τετράκις four times < τετρα- tetra- comb. form + -κις , suffix also seen in πολλάκις often (see pollakanthic adj.).
Formative element used in Chemistry in the names of compounds to signify four identical groups all substituted in the same way; formerly = tetra- comb. form 2.
ΚΠ
1850 C. G. B. Daubeny Introd. Atomic Theory (ed. 2) 112 When the number of proportionals of base is 2, the prefix di or dis is adopted; when 3, tris; when four, tetrakis…trisilicate of iron, 3 of base to 1 of silicic acid.
1912 Jrnl. Chem. Soc. 101 2003 The product obtained was tetrakisazobenzene, a deep red substance.
1951 R. E. Kirk & D. F. Othmer Encycl. Chem. Technol. VII. 580 Tetrakis(p-dimethylaminophenyl)hydrazine is dissociated to the extent of 10% in benzene solution and 21% in nitrobenzene.
1963 A. J. Hall Student's Handbk. Textile Sci. v. 259 The Proban flameproofing process is essentially based on the use of tetrakis-hydroxymethyl~phosphonium chloride.
1979 G. C. Barrett in D. N. Jones Comprehensive Organic Chem. III. xi. iv. 77 Tetra~kis(methylthio)methane, (MeS)4C, undergoes exchange with dithiols.
This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2022).
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