sea onion

(redirected from Urginea scilla)
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Related to Urginea scilla: sea squill, white squill, Drimia maritima

sea onion

1. The squill Urginea maritima, whose bulb yields a powder used as a rat poison and formerly used medicinally.
2. Any of various similar bulbous plants.

sea onion

Herbal medicine
A cabbage-like plant that grows in the sandy soils of the Mediterranean rim and South Africa. Of the two variants—red and white squill—the latter is of greater use as a herb, as it has less of the toxin scilliroside; the active principles in squill are antitussive, cardiotonic (due to scillarens A and B), diuretic and expectorant.

Scilliroside is a potent emetic, and was formerly used as a rat poison.


said of denizens of the ocean. Called also marine.

sea cage
netting enclosure anchored to the sea bed or to buoys in which cultivated fish for human consumption are kept captive and fed special diets.
sea canary
sea horse
bizarre aquarium fish with a snout, a skin covered with bony rings and a prehensile tail; the male has a brood pouch on the belly into which the female deposits her eggs. Called also Hippocampus.
sea onion
sea otter
see otter.
sea snakes
members of the family Hydrophiidae, venomous snakes, inhabiting the sea, with paddle-shaped tails. Unlikely to bite unless pressed.
sea squill
sea wasp
sea water
if natural sea water is not available a substitute can be used: sodium chloride—27.2; magnesium chloride—3.8; magnesium sulfate—1.6; calcium sulfate—1.3; potassium sulfate—0.9; calcium carbonate and magnesium bromide—each 0.1, all in g/l.