Sea squill is a common name for a plant species that belongs to the Asparagaceae family. This plant species is commonly found in coastal areas and is known for its beautiful white flowers that bloom in the summer. Sea squill is also known by other common names such as sea onion, squill, and sea lily. The term "sea onion" is used to describe the bulb of this plant, which is edible and used in some cuisines. Squill, on the other hand, refers to the medicinal properties of the plant. Sea lily is another common name used to describe the plant's resemblance to a lily. Regardless of the name, sea squill is a beautiful and versatile plant species that has many uses.