IPA: //pænˈtrɒpɪkəl//
KK: /pænˈtrɒpɪkəl/
Relating to areas that are found in or cover the tropical regions of the world.
The pantropical climate supports a wide variety of plant and animal life.
Pantropical → It is formed from "pan-" (meaning all) and "tropicus" (from Latin, meaning turning or pertaining to the tropics). The word "pantropical" refers to something that relates to or is found in all tropical regions.
Think of 'all' ('pan-') areas that are 'tropical' — that's why pantropical means relating to all tropical regions.