obscuration
Ob`scu*ra"tion, n. Etym: [L. obscurativ: cf.F. obscuration. See Obscure, v. t. ] Defn: The act or operation of obscuring; the state of being obscured; as, the obscuration of the moon in an eclipse. Sir J. Herschel.
Ob`scu*ra"tion, n. Etym: [L. obscurativ: cf.F. obscuration. See Obscure, v. t. ] Defn: The act or operation of obscuring; the state of being obscured; as, the obscuration of the moon in an eclipse. Sir J. Herschel.