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.
Definition of ALVEOLUS. 1. : a small cavity or pit: as a: a socket in the jaw for a tooth b: a small air-containing compartment of the lungs in which the bronchioles terminate and from which respiratory gases are exchanged with the pulmonary capillaries c: an acinus of a compound gland d: a cell of a honeycomb.2.efinition of ALVEOLUS. 1. : a small cavity or pit: as a: a socket in the jaw for a tooth b: a small air-containing compartment of the lungs in which the bronchioles terminate and from which respiratory gases are exchanged with the pulmonary capillaries c: an acinus of a compound gland d: a cell of a honeycomb.