sea-purse vs sea purse

sea-purse and sea purse both are nouns.

Word	Noun	Adjective	Verb	Adverb
sea-purse	Yes	No	No	No
sea purse	Yes	No	No	No

As nouns, sea-purse and sea purse are synonyms defined as:

sea-purse and sea purse: the seaward undercurrent created after waves have broken on the shore

Other synonyms of sea-purse include sea-poose, sea-puss, sea puss, undertow.

sea-purse (noun)	sea purse (noun)
the seaward undercurrent created after waves have broken on the shore	the seaward undercurrent created after waves have broken on the shore