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单词 non-basic
释义

non-basicadj.

Brit. /ˌnɒnˈbeɪsɪk/, U.S. /nɑnˈbeɪsɪk/
Origin: Formed within English, by derivation. Etymons: non- prefix, basic adj.
Etymology: < non- prefix + basic adj.
1. Chemistry. Not having the properties of or containing a base (base n.1 14a).
ΚΠ
1838 Brit. Ann. & Epitome Progress Sci. 1839 357 Mr Graham considers that the test of the nonbasic character of water or a metallic oxide, in a compound, is the absence of a parallel combination, containing an oxide of the potash class.
1855 Philos. Trans. (Royal Soc.) 145 208 Intermediate between the protoxide of manganese and the non-basic oxides, there exists..Mn3O4.
1872 Harper's Mag. Jan. 310/1 The acid and non-basic products formed are, formic, acetic, metacetic, butyric, valeric, and carbolic acids.
1929 Bot. Gaz. 87 177 The liquid decanted from the phosphotungstic precipitate was used for both the non-basic and amino-acid nitrogen.
1991 D. T. Sawyer Oxygen Chem. iv. 85 A rigorously nonbasic solution matrix.
2. gen. Not basic or fundamental.
ΚΠ
1919 Amer. Jrnl. Math. 41 7 L(x) has no non-basic multiple points.
1939 Mind 48 489 The discrimination of basic from non-basic predicates.
1950 P. B. Kershner & L. R. Wilcox Anat. Math. ii. 17 Whenever nonbasic mathematical words are introduced, they will..be explicitly defined.
1991 Mind 100 16 The theoretical constructs of any nonbasic science are constructs that are realized..by the constructs of some more basic science.
This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).
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adj.1838
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