Dictionary.com

plasmasphere

[ plaz-muh-sfeer ]
/ ˈplæz məˌsfɪər /
Save This Word!

noun Astronomy.
a region of cool plasma surrounding the earth, extending 8000–25,000 miles (13,000–40,000 km) into space, and bounded by the plasmapause.
QUIZ
FIRE UP YOUR VOCAB FOR A "RED" SYNONYMS QUIZ
No fire engine reds here, only a fierce collection of vibrant words for the color red to test yourself on.
Question 1 of 7
What does "amaranth" mean?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of plasmasphere

First recorded in 1965–70; plasma + -sphere
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use plasmasphere in a sentence

  • The plasmasphere of Eisberg differed from that of Earth in two ways.

    Unwise Child|Gordon Randall Garrett
FEEDBACK