/euh bun"deuhns/ , n.
1. an extremely plentiful or oversufficient quantity or supply: an abundance of grain.
2. overflowing fullness: abundance of the heart.
3. affluence; wealth: the enjoyment of abundance.
4. Physics , Chem. the number of atoms of one isotope of an element divided by the total number of atoms in a mixture of the isotopes.
[ 1300-50; ME abundantia. See ABUNDANT, -ANCE ]
Syn. 1. copiousness, plenteousness. See plenty. 2. generosity.
Ant. 1. scarcity.