Cyclone

GRE TOEFL

[编辑] 解释

n. 旋风, 飓风
［英］ n. 旋风, 飓风 ( a windstorm with violent, whirling movement; tornado or hurricane )
［记］ cycl ( 圆, 转) +one -> 转的东西 -> 旋风
［同］同根词: cyclmate ( 糖精) ; cyclopedic ( 百科全书的, 广泛的)

noun

Etymology: modification of Greek kyklōma wheel, coil, from kykloun to go around, from kyklos circle
Date: 1848
1.
- a. a storm or system of winds that rotates about a center of low atmospheric pressure, advances at a speed of 20 to 30 miles (about 30 to 50 kilometers) an hour, and often brings heavy rain
- b. tornado
- c. low IV,1b
2. any of various centrifugal devices for separating materials (as solid particles from gases)
? cyclonic adjective
? cyclonically adverb