| 释义 |
▪ I. bicyclic, a.|baɪˈsɪklɪk|
[f. bicycle n. + -ic.]
Of or connected with bicycles. So bicyclical.
1876Daily News 8 Nov. 5/3 Parties of bicyclic enthusiasts.
▪ II. bicyclic, a.2|baɪˈsaɪklɪk, -ˈsɪk-|
[f. bi-2 + cyclic a.]
1. Consisting of or having two circles (see quots.). rare—0.
1889Cent. Dict., Bicyclic, consisting of or having two circles; specifically, in bot., in two whorls, as the stamens of a flower. Ibid. s.v. Chuck4, Bicyclic chuck, a contrivance by which two rigidly connected points are forced to move on the circumference of two fixed circles.
2. Chem. (Composed of molecules) containing two usu. fused rings of atoms.
1907Chem. News 30 Aug. 107/1 (heading) Methane 1,8-dicarboxylic acid. A new bicyclic ketone. 1923Chem. Abstr. XVII. 749 (heading) Bicyclic and polycyclic compounds with bridging atoms. 1974Gill & Willis Pericyclic Reactions vi. 157 The initial products have the expected stereochemistry and can be isomerized further to bicyclic molecules. 1977J. L. Harper Population Biol. of Plants 414 The plants contain small amounts of single bicyclic alkaloids in their inflorescences. |