We don't have synonyms for sea wasp yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are sea wall, sea bass and sea ash.
(n) :
Any of several marine stinging box jellyfish found in north east Australia and South East Asia, some deadly, especially Chironex fleckeri, Carukia barnesi, and Malo kingi.
(n) :
Any of several marine stinging box jellyfish found in north east Australia and South East Asia, some deadly, especially Chironex fleckeri, Carukia barnesi, and Malo kingi.