Definition of evection in English:

evection

noun

Astronomy
  • [mass noun] Regular variation in the eccentricity of the moon's orbit around the earth, caused mainly by the sun's attraction.

Origin

Mid 17th century (in the sense ‘elevation, exaltation’): from Latin evectio(n-), from evehere carry out or up, from e- (variant of ex-) out + vehere carry.

Pronunciation:

evection

/ɪˈvɛkʃ(ə)n/