| 释义 |
▪ I. † ˈunary, n. Obs.—1
[f. L. ūn-us one.]
A unit.
1576Fleming tr. Caius' Dogs (1880) 36 This countrey was cleerely discharged of rauenyng wolfes, & none at all left, no, not to the least number, or the beginnyng of a number, which is an Vnari.
▪ II. unary, a.|ˈjuːnərɪ|
[f. L. ūn-us one + -ary1, after binary, ternary adjs.]
1. Chem. Of a chemical system: consisting of a single component.
1923A. C. D. Rivett Phase Rule i. 25 For systems of one, two, three, four, five (and so on) components, one uses the terms unary, binary, ternary, quaternary, quinary (and so on), respectively. 1980Mineral. Abstr. XXXI. 311/1 Sixteen possible configurations of phase diagrams have been deduced for unary four-phase multi⁓systems.
2. Math., Logic, and Linguistics. Of an operator, operation, or transformation: involving or operating on a single element.
1931Bull. Amer. Math. Soc. XXXVII. 487 Let p be the result of an undefined unary operation on a K-element p, and p + q the result of an undefined binary operation on the K-elements p, q. 1940[see singulary a.]. 1961Jrnl. Assoc. Computing Machinery VIII. 579 The five binary arithmetic operators ({expon}, ×, /, +, -), the two unary arithmetic operators (+, -). 1965Language XLI. 270 Robert Stockwell has described rules that indicate the colorless patterns for kernel sentences and unary transformations. 1968J. J. C. Smart Betw. Sci. & Philos. ii. 24 ‘Not’ can be thought of as a unary sentence connective. 1973C. W. Gear Introd. Computer Sci. iii. 104 The unary arithmetic operators take precedence over all of the binary operators and must be performed first. 1976J. S. Gruber Lexical Structures in Syntax & Semantics ii. i. 266 If the treatment is through a unary transformation that alters structure, the dependency of the transformation on apparently semantic factors becomes a matter of graver theoretical consequences.
3. Composed of a single item or element.
1968P. M. Postal Aspects Phonol. Theory i. 13 Natural languages have structures which are such that the markers on every level can be looked upon as sets (sometimes unary sets) of strings of elements. 1968Amer. Documentation Jan. 73/1 Items are either unary or multiple, depending upon whether they are composed of a single piece of information (which may itself be composed of any number of characters or words) or of two or more separate pieces of information. |