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.
Definitions of egg cell. 1. animal reproductive body consisting of an ovum or embryo together with nutritive and protective envelopes; especially the thin-shelled reproductive body laid by e.g. female birds. mature ovum after penetration by sperm but before the formation of a zygote. a small or immature ovum.