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mean planet
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noun Astronomy.
a hypothetical planet that coincides with a real planet when the real planet is at perihelion and that moves in an orbit at a constant velocity equal to the mean velocity of the real planet.
QUIZ
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Which of the following nouns has an irregular plural form?
Words nearby mean planet
mean life, mean line, meanly, meanness, mean noon, mean planet, mean proportional, means, mean sea level, Means grass, means of production
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022