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cyclogenesis

American

[sahy-kluh-jen-uh-sis] / ˌsaɪ kləˈdʒɛn ə sɪs /

noun

Meteorology.

the development or intensification of a cyclone, usually in simultaneous occurrence with a decrease in atmospheric pressure.

They’re studying the timing of cyclogenesis in relation to the onset of monsoon season.

Etymology

Origin of cyclogenesis

First recorded in 1935–40; cycl(one) + -o- ( def. ) + genesis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Goretti, named by French forecasters, is likely to undergo "explosive cyclogenesis" - also known as a "weather bomb".

From BBC • Jan. 7, 2026

Explosive cyclogenesis is generally a sign of a storm that could bring strong winds.

From BBC • Jan. 6, 2026

A cyclogenesis refers to an intensification of a cyclone or low-pressure storm system.

From Seattle Times • Feb. 3, 2023

In some circumstances, the atmospheric conditions can create explosive cyclogenesis - or a weather bomb - just to the west of the UK, which can bring the most damaging winds.

From BBC • Feb. 1, 2023

The rapid cyclogenesis - known colloquially as a "weather bomb" - is a deep low pressure system moving slowly eastwards between Iceland and Scotland.

From BBC • Dec. 9, 2014

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023