Ice plant Bot. A plant (Mesembryanthemum crystallinum), sprinkled with pellucid, watery vesicles, which glisten like ice. It is native along the Mediterranean, in the Canaries, and in South Africa. Its juice is said to be demulcent and diuretic; its ashes are used in Spain in making glass.
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  ice plant
       n : Old World annual widely naturalized in warm regions having
           white flowers and fleshy foliage covered with hairs that
           resemble ice [syn: icicle plant, Mesembryanthemum
           crystallinum]