evection

noun

evec·​tion

ə̇ˈvekshən,

ēˈ-

plural -s

1

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

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

Word History

Etymology

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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