astronomy [i qstr1nqmi | `tr9n` ]     (순위: 4481 - 고2 수준)   뜻  천문학 Mean  The scientific study of matter in outer space, especially the positions, dimensions, distribution, motion, composition, energy, and evolution of celestial bodies and phenomena. 파생어 astronomical  [형] 예문 1. gravitational astronomy (천체 역학) 2. nautical astronomy (항해 천문학) 3. spherical astronomy (구면 천문학)