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ionopause
[ ahy-on-uh-pawz ]
/ aɪˈɒn əˌpɔz /
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noun
the transitional zone between the ionosphere and the mesosphere.
QUIZ
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
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Words nearby ionopause
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
British Dictionary definitions for ionopause
ionopause
/ (aɪˈɒnəˌpɔːz) /
noun
the transitional zone in the atmosphere between the ionosphere and the exosphere, about 644 km (400 miles) from the earth's surface
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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