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.
Well, your teacher is essentially (but not totally) correct. In an unfertilized egg (the kind you buy at the grocery store), there is a small, whitish disk on one side of the yolk. This little structure is called the germinal disc, and it contains the nucleus and most of the cytoplasm of the egg cell.