Emily Dickinson Lexicon

TROP'IC-AL, a.

1. Pertaining to the tropics; being within the tropics; as, tropical climates; tropical latitudes; tropical heat; tropical winds.
2. Incident to the tropics; as, tropical diseases.
3. [from trope.] Figurative; rhetorically changed from its proper or original sense. 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. Tropical writing or hieroglyphic, is such as represents a thing by qualities which resemble it. Warburton.