from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of several marine bivalve mollusks, especially the edible members of the family Mytilidae and in particular Mytilus edulis, a blue-black species raised commercially in Europe. Mussels are often found attached to rocky surfaces or the sides of ships.
- n. Any of several freshwater bivalve mollusks of the genera Anodonta and Unio, found in the central United States, that burrow in the sand or mud of lakes and streams.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A small edible bivalve shellfish of the families Unionidae (fresh water mussels) and Mytilidae (salt water mussels).
from the GNU version of the Collaborative International Dictionary of English
- n. Any one of many species of marine bivalve shells of the genus Mytilus, and related genera, of the family Mytidæ. The common mussel (Mytilus edulis; see Illust. under byssus), and the larger, or horse, mussel (Modiola modiolus), inhabiting the shores both of Europe and America, are edible. The former is extensively used as food in Europe.
- n. Any one of numerous species of Unio, and related fresh-water genera; -- called also river mussel. See Naiad, and Unio.
from The Century Dictionary and Cyclopedia
- n. Any one of many bivalve mollusks of various genera and species.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. black marine bivalves usually steamed in wine
- n. marine or freshwater bivalve mollusk that lives attached to rocks etc.
Alteration (possibly influenced by Dutch mossel) of Middle English muscle, from Old English muscelle, from Medieval Latin mūscula, from Latin mūsculus, sea mussel; see muscle.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin mūsculus ("mussel or muscle"), literally "little mouse". (Wiktionary)