- any of various marine gastropods with a low conical shell open beneath, often browsing on rocks at the shoreline and adhering when disturbed.
O.E. lempedu, from M.L. lampreda"limpet" (see lamprey) (http://dictionary.reference.com/browse/limpet)
"The limpet Patella caerula is shaped like a Chinese straw hat."
- Elizabeth Kolbert, The Sixth Extinction: an Unnatural History