evection

noun evec·tion \ə̇ˈvekshən, ēˈ-\

Definition of evection

plural

-s

  1. 1 :  perturbation of the moon's motion in its orbit due to the attraction of the sun

  2. 2 in certain filamentous algae :  displacement of the base of a new branch with respect to its parent cell so as to result in apparent dichotomy

evectional

\-shənəl, -shnəl\ adjective

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Origin and Etymology of evection

Latin evection-, evectio act of going up, from evectus (past participle of evehere to carry out, raise up, from e- + vehere to carry) + -ion-, -io -ion


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