You searched for: “cosmic years”
cosmic year (s) (noun), cosmic years (pl)
A period of approximately 220 million years, the time it takes for the sun to make one orbit around the center of the Milky Way Galaxy.
This entry is located in the following unit: cosmo-, cosm-, cosmico-, cosm, -cosmia, -cosmos, -cosmic, -cosmics, -cosmical, -cosmology, -cosms (page 2)