| 释义 |
ex·tra·tropical cyclone
\| ̷ ̷ ̷ ̷+...-\ noun
Etymology: extra- + tropical
: a cyclone in the middle latitudes being often 1500 miles in diameter and usually containing a cold front that extends toward the equator for hundreds of miles from the center of low pressure and that divides the warmer humid winds of the forward portion from the cooler dry winds of the rear portion |