Definition of "Tropical" :

adjective: of weather or climate; hot and humid as in the tropics

"Tropical weather."

adjective: characterized by or of the nature of a trope or tropes; changed from its literal sense

adjective: relating to or situated in or characteristic of the tropics (the region on either side of the equator)

"Tropical islands."

adjective: of or relating to the tropics, or either tropic

"Tropical year."