Definition of dram

• n. - A weight; in Apothecaries' weight, one eighth part of an ounce, or sixty grains; in Avoirdupois weight, one sixteenth part of an ounce, or 27.34375 grains.
• n. - A minute quantity; a mite.
• n. - As much spirituous liquor as is usually drunk at once; as, a dram of brandy; hence, a potation or potion; as, a dram of poison.
• n. - A Persian daric.
• v. i. & t. - To drink drams; to ply with drams.