sea onion

Noun sea onion has 2 senses

• sea onion(n = noun.plant) sea squill, squill, urginea maritima - having dense spikes of small white flowers and yielding a bulb with medicinal properties;
is a kind of liliaceous plant
is a member of genus urginea, urginea
has parts: squill

• sea onion(n = noun.plant) scilla verna, spring squill - European scilla with small blue or purple flowers;
is a kind of scilla, squill