galactic
/gəˈlæktɪk/adjective
1- 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)。
1.1
- Astronomy measured relative to the galactic equator【天文】以银道圈为标准进行测量的。
词源
mid 19th cent.: from Greek galaktias (variant of galaxias 'galaxy') + -IC.