Webster's Revised Unabridged Dictionary · 1913

Tropical

Tropical , adjective

[Compare Latin tropicus of turning, Greek {not transcribed}. See Tropic, n.]

1.
Of or pertaining to the tropics; characteristic of, or incident to, the tropics; being within the tropics; as, tropical climate; tropical latitudes; tropical heat; tropical diseases.
2.
Rhetorically changed from its exact original sense; being of the nature of a trope; figurative; metaphorical. — Jer. Taylor
The foundation of all parables is some analogy or similitude between the tropical or allusive part of the parable and the thing intended by it. — South
Collocations (2)
Tropic month , See Lunar month, under Month.
Tropic year , the solar year; the period occupied by the sun in passing from one tropic or one equinox to the same again, having a mean length of 365 days, 5 hours, 48 minutes, 46.0 seconds, which is 20 minutes, 23.3 seconds shorter than the sidereal year, on account of the precession of the equinoxes.