Squill \Squill\, n. [F. squille (also scille a squill, in sense 1), L. squilla, scilla, Gr. ?.]

1. (Bot.)
   (a) A European bulbous liliaceous plant (Urginea, formerly Scilla, maritima), of acrid, expectorant, diuretic, and emetic properties used in medicine. Called also sea onion.
   (b) Any bulbous plant of the genus Scilla; as, the bluebell squill (S. mutans).

2. (Zo["o]l.)
   (a) A squilla.
   (b) A mantis.

Source: Webster's Revised Unabridged Dictionary (1913)