| 释义 |
orientational, a.|ɔərɪənˈteɪʃənəl|
[f. orientation + -al.]
Pertaining to or involving orientation, esp. of variable elements in a specified context.
1952[see cognitive a.]. 1962Corson & Lorrain Introd. Electromagn. Fields iii. 113 We then considered orientational polarization in which molecules with a permanent dipole moment tend to be aligned by an external field. 1968J. Lyons Introd. Theoret. Linguistics vii. 275 The notion of deixis..is introduced to handle the ‘orientational’ features of language which are relative to the time and place of utterance. 1974R. Jessop Traditionalism, Conservatism & Brit. Pol. Culture i. 17 Most political scientists employ ‘political culture’ as a mere catchword..for all sorts of influences..that include both structural and orientational factors. 1976Nature 23 Sept. 353/2 An extraordinary orientational relationship between the rhombohedral green rust..and magnetite..has been reported.
Hence orienˈtationally adv.
1975Nature 31 Jan. 310/2 The molecules are positionally ordered but orientationally disordered and mobile. |