of or relating to a galaxy or galaxies, especially the galaxy containing the solar system (与)星系(有关)的(尤指银河系的) ■(Astronomy)measured relative to the galactic equator (天)以银道圈为标准进行测量的
派生 galactically adverb 语源
mid 19th cent.: from Greek galaktias (variant of galaxias 'galaxy') + -ic