Definition of tropic noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈtrɒpɪk//
    ; NAmE NAmE//ˈtrɑːpɪk//
    Other geographic regions
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  1. 1[countable, usually singular] one of the two imaginary lines drawn around the world 23° 26′ north (the Tropic of Cancer) or south (the Tropic of Capricorn) of the equator Wordfinderclimate, earth, equator, equinox, hemisphere, International Date Line, latitude, map, planet, tropic See related entries: Other geographic regions
  2. 2the tropics [plural] the area between the two tropics, which is the hottest part of the world synonym torrid zone
  3. Word Originlate Middle English (denoting the point on the ecliptic reached by the sun at the solstice): via Latin from Greek tropikos, from tropē ‘turning’, from trepein ‘to turn’.
See the Oxford Advanced American Dictionary entry: tropic