eclipse \i-'klipse\ n&nbsp;&nbsp; 1&nbsp; a: the total or partial <br>obscuring of one celestial body by another&nbsp; b : the passing into the shadow of a celestial body --- <br>compare OCCULTATION TRANSIT&nbsp;&nbsp; 2 : a falling into obscurity or decline; also: the state of being eclipsed&nbsp; 3 : the state of being in eclipse plumage