In summary, "tropic" can refer to specificlines of latitudeordescribe the characteristics of hot, humid regions. It is oftenused when talkingaboutweather, climate, and geography.
Adjective
of weatherorclimate; hot and humidas in the tropics
tropicalweather
relating to orsituated in orcharacteristic of the tropics (the regiononeitherside of the equator)
tropicalislands
tropicalfruit
Noun
either of twoparallels of latitudeabout 23.5 degrees to the north and south of the equatorrepresenting the pointsfarthestnorth and southat which the sun can shinedirectlyoverhead and constituting the boundaries of the Torrid Zoneortropics