Of or pertaining to the tropics, the equatorial region between 23 degrees north and 23 degrees south. / From or similar to a hot humid climate

A tropical plant.

tropicalness

Anything that is characteristic of Tropicália, a Brazilian artistic movement.

Either of the two parallels of latitude 23°27′ north and south of the equator; the farthest points at which the sun can be directly overhead; the boundaries of the torrid zone or tropics.

Of, or relating to the tropics; tropical. / (weather, climate) Hot and humid.

plural of tropic

(geography) The region of the Earth centred on the equator and lying between the Tropic of Cancer and the Tropic of Capricorn and characterized by a hot climate.

(sciences) turning or changing / (sciences) affecting or attracted to the thing specified

In a tropical manner; of the tropics. / In a metaphorical or figurative manner; as a trope.