Princeton's WordNet(1.00 / 2 votes)Rate this definition: Wiktionary(2.67 / 3 votes)Rate this definition: infinity(Noun) Limitlessness, unlimitedness, something which is growing without limits or bounds. infinity(Noun) A number that has an infinite numerical value that cannot be counted.
univalve (mollusk) a class of mollusks typically having a 1-piece coiled shell and flattened muscular foot with a head bearing stalked eyes. animal noun (animals and microorganisms) univalves.
musâ¢sel. any bivalve mollusk, esp. an edible marine bivalve of the family Mytilidae and a freshwater clam of the family Unionidae. [before 1000; Middle English, Old English muscle *mÅ«scula, feminine derivative of Latin mÅ«sculus little mouse, sea mussel.See muscle ].. mussel-marine or freshwater bivalve mollusk that lives attached to rocks etc. bivalve, lamellibranch, pelecypod-marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together.