WordReference Random House Unabridged Dictionary of American English © 2026
sea′ on′ion,
- Plant BiologyAlso called sea squill. a Mediterranean plant, Urginea maritima, of the lily family, yielding medicinal squill.
- Plant Biologya squill, Scilla verna, of the Isle of Wight, having narrow leaves and clusters of violet flowers.
- Middle English 1350–1400
'sea onion' also found in these entries (note: many are not synonyms or translations):