solar wind

noun
Updated on: 19 May 2018

Definition of solar wind

: plasma continuously ejected from the sun's surface into and through interplanetary space

Recent Examples of solar wind from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'solar wind.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of solar wind

1958

in the meaning defined above

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