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evection
[ ih-vek-shuhn ]
noun
, Astronomy.
- a periodic irregularity in the moon's motion, caused by the attraction of the sun.
evection
/ ɪˈvɛkʃən /
noun
- irregularity in the moon's motion caused by perturbations of the sun and planets
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Derived Forms
- eˈvectional, adjective
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Other Words From
- e·vection·al adjective
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Word History and Origins
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Word History and Origins
Origin of evection1
C17: from Latin ēvectiō a going up, from ēvehere to lead forth, from vehere to carry
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Example Sentences
His chief discovery was an irregularity of the lunar motion, called the ‘evection.’
From Project Gutenberg
This he called the evection, and introduced another epicycle to represent it.
From Project Gutenberg
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