n. A staff about 5 feet long, ending in a hook or curve, or, in the case of an archbishop's crozier, surmounted by an ornamented cross or crucifix, borne by or before a bishop or archbishop on solemn occasions.n. One who bears the crozier or the cross; a cross-bearer.n. In astronomy, a constellation, the Southern Cross. See Crux, 2.n. In botany, the circinate young frond of a fern. Also crozier-head, crozier-bud.n. The flat, spirally coiled shell of the cephalopodous mollusk Spirula.