| 释义 |
tetradic, a.|tɪˈtrædɪk|
[f. tetrad + -ic. Cf. F. tétradique (in Cotgr.).]
a. Of, pertaining to, or of the nature of a tetrad.
1788T. Taylor Proclus (1792) I. 179 The tetradic ternary, and the triadic quaternary. a1914C. S. Peirce Coll. Papers (1935) VI. 222 A tetradic, pentadic, etc. relationship is of no higher nature than a triadic relationship. 1921[see monadic a. 1 b].
b. Chem. That is a tetrad; tetravalent.
1868Fownes' Chem. (ed. 10) 257. 1872 Watts Dict. Chem. VI. 237 Carbon, which combines with 4 atoms of hydrogen, is tetratomic, tetradic, or quadrivalent. 1877― Fownes' Chem. (ed. 12) I. 267 With silver..it [oxygen] forms the two oxides, Ag2O and Ag4O, in the latter of which it is tetradic.
c. Anc. Pros. (a) Containing four different metres or rhythms. (b) Composed of groups of systems, each of which contains four unlike systems.
1891in Cent. Dict. |