ormer
Concise Oxford English Dictionary © 2008 Oxford University Press:
ormer /ˈɔːmə/
▶noun an abalone, especially one used as food in the Channel Islands. [Haliotis tuberculata and other species.]
– origin C17: Channel Islands Fr., from Fr. ormier, from L. auris maris ‘ear of the sea’ (because of its ear-like shape).
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