Home/planetologyplanetology/plan-i-tol-uh-jee/US // ˌplæn ɪˈtɒl ə dʒi //UK // (ˌplænɪˈtɒlədʒɪ) //星球学,星象学,星座学,星空学Definitionsn.名词 noun1: the branch of astronomy that deals with the physical features of the planets. Level 4Browse all words →