Related topics: Geography
trop·ic /ˈtrɒpɪk $ ˈtrɑː-/ noun 1. [countableC]HEOPG one of the two imaginary lines around the world, either the Tropic of Cancer which is 23½º north of the equator, or the Tropic of Capricorn which is 23½º south of the equator 回归线 →4 See picture of 见图 GLOBE
2 the tropics PGthe hottest part of the world, which is around the equator 热带(地区) plant species found in the tropics 见于热带地区的植物物种