Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Language: Latin
Origin: tropicus 'of the point where the sun turns back having gone its furthest north and south', from Greek, from trope; TROPHY

tropic

noun
     
Related topics: Geography
trop‧ic
1 [countable]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 23½° south of the equator
2

the tropics

PG the hottest part of the world, which is around the equator:
plant species found in the tropics

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