<p><strong>Noun</strong></p><ul><li>A receptacle of hard material, having a bowl-shaped cavity in which substances are reduced to powder with a pestle.</li><li>Any of various mechanical appliances in which substances are pounded or ground.</li><li>A cannon very short in proportion to its bore, for throwing shells at high angles.</li><li>Some similar contrivance, as for throwing pyrotechnic bombs or a lifeline.</li></ul><p><strong>End of Response</strong></p>