a. [ L. ponderosus, from pondus, -eris, a weight: cf. F. pondéreux. See Ponder. ] 1. Very heavy; weighty; as, a ponderous shield; a ponderous load; the ponderous elephant. [ 1913 Webster ] The sepulcher . . . Hath oped his ponderous and marble jaws. Shak. [ 1913 Webster ] 2. Important; momentous; forcible. “Your more ponderous and settled project.” Shak. [ 1913 Webster ] 3. Heavy; dull; wanting; lightless or spirit; as, a ponderous style; a ponderous joke. [ 1913 Webster ] Ponderous spar (Min.), heavy spar, or barytes. See Barite. [ 1913 Webster ]
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