(skwil) noun
1. A bulbous plant (Urginea maritima) of the lily family, growing in the Mediterranean region; the sea onion.
2. Its bulb, dried and sliced, the white variety having diuretic and expectorant properties, and the red variety yielding a rat poison.
3. Any plant of the genus Scilla, the more common ones usually called by some other name, as the common English bluebell or wild hyacinth. [<L squilla <Gk. skilla sea onion]

(skwil) noun
Any of a genus (Squilla) of burrowing crustaceans having the form and appearance of a mantis: sometimes called mantis shrimp. Also squi·la (skwil′ə). [<L squilla shrimp]