squill(redirected from white squill)
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(Urginea maritima), also sea onion, a perennial herbaceous plant of the family Liliaceae. It has a large bulb, weighing 3 kg or greater. The inflorescence is a many-flowered raceme on a long peduncle, or scape, which measures 50-150 cm. Squill grows wild in Mediterranean countries. The bulbs contain glycosides (for example, scillaren A), saponins, and other substances. Preparations from squill stimulate the cardiovascular system and urination. A powder prepared from the bulbs was formerly used in treating heart failure; in modern medicine it is rarely used. The bulbs and preparations from the red variety of squill are effective in rodent control.