[f. ECLIPSE v. + -ATION: in med.L. eclipsatia (Du Cange).] The action of eclipsing or state of being eclipsed. Also fig.
1471. Ripley, Comp. Alch., in Ashm. (1652), 187. Then forth into the North procede by obscuratyon; Of the Red Man and hys Whyte Wyfe callyd Eclypsation.
1575. G. Harvey, Letter-bk. (1884), 93. That owtelandish word, Eclipsation of my absence.
1584. Almanack, She [the moon] wyll continue in her totall Eclipsation one houre and .xx. minutes.