n.
Pronunciation: ' trä-pik
Function: noun
Etymology: Middle English tropik, from Latin tropicus of the solstice, from Greek tropikos, from trop ē turn
Date: 1527
1 : either of the two parallels of terrestrial latitude at a distance of about 231/2 degrees north or south of the equator where the sun is directly overhead when it reaches its most northerly or southerly point in the sky ― compare TROPIC OF CANCER , TROPIC OF CAPRICORN
2 plural often capitalized : the region lying between the tropics