Mermaid's purse - definition of mermaid's purse by The Free Dictionary
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mer·maid's purse (mûr′mādz′)
The rectangular leathery egg case of certain elasmobranch fishes, especially the skates, often found washed up on beaches. Also called sea purse.
References in periodicals archive
A MERMAID'S PURSE
REGULAR readers will know that I am a great fan of bringing the outside inside.
It is half encased in a pod, rather like a mermaid's purse
, yet I am also aware that I have given birth to it.
THE MERMAID'S PURSE
(Katy Gardner, Michael Joseph pounds 9.