单词 | disc galaxy |
释义 | > as lemmasdisc galaxy disc galaxy n. Astronomy a galaxy in the approximate form of a disc.Disc galaxies include lenticular galaxies and spiral ones. ΚΠ 1962 Proc. 15th Internat. Astron. Union Symp. 1961 196 I get the impression that—while the disc galaxies are apparently the predominant form—the spirals really predominate in each unit volume among giant galaxies. 1989 J. Silk Big Bang (rev. ed.) x. 205 Disk galaxies are thought to form outside the great clusters. 2008 J. Gribbin Galaxies: Very Short Introd. ii. 18 Even today many astronomers refer to ‘spirals’ when they are talking about essentially featureless disc galaxies. < as lemmas |
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