Definition of cyclone
1a : 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 rainb : tornadoc : 4low 1b
2 : any of various centrifugal devices for separating materials (such as solid particles from gases)
cyclonicplay \sī-ˈklä-nik\ adjective
cyclonicallyplay \sī-ˈklä-ni-k(ə-)lē\ adverb
Recent Examples of cyclone from the Web
And for the Asia-Pacific region in particular, with its low-lying archipelagos and fierce cyclones, climate is itself a security issue.
Right now, tropical cyclone formation is not expected in the next five days in the north Atlantic, the Caribbean Sea and the Gulf of Mexico.
A cyclone tore through parts of Bangladesh on Tuesday, destroying the homes of thousands of Rohingya refugees who had fled the violence in Myanmar over the last several years.
Dhaka, Bangladesh (CNN)Nearly 300,000 people were evacuated from south coastal areas of Bangladesh Monday night as a cyclone dubbed Mora was forecast to make landfall Tuesday morning local time, authorities in Dhaka said.
Tropical Storm Mora is expected to make landfall early Tuesday as a Category 1 cyclone.
Turning counter-clockwise in the northern hemisphere just like on Earth, the cyclones are clearly clustered near the poles.
Researchers believe the cyclones that the spacecraft spotted are the result of ammonia welling up from deep within the planet, creating turbulent weather even far below the upper atmosphere.
Gathered during Juno’s August 27 science orbit, the early results include the revelation that Jupiter’s magnetic field is nearly twice as strong as expected, and that enormous cyclones erupt and swirl near the planet’s poles.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cyclone'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of cyclone
modification of Greek kyklōma wheel, coil, from kykloun to go around, from kyklos circle
First Known Use: 1848
Definition of Cyclone
—used for a chain-link fence
CYCLONE Defined for English Language Learners
Definition of cyclone for English Language Learners
: an extremely large, powerful, and destructive storm with very high winds that turn around an area of low pressure
CYCLONE Defined for Kids
Seen and Heard
What made you want to look up cyclone? Please tell us where you read or heard it (including the quote, if possible).