Obscuration
Pronunciation : Ob`scu*ra"tion
Part of Speech : n.
Etymology : [L. obscurativ: cf.F. obscuration. See Obscure, v. t. ]
Definition : Defn: The act or operation of obscuring; the state of being obscured; as, the obscuration of the moon in an eclipse. Sir J. Herschel.
Source : Webster's Unabridged Dictionary, 1913