Pronunciation: (al'gu-riz"um), [key]
—n. Math. Now Rare.
1. the Arabic system of arithmetical notation (with the figures 1, 2, 3, etc.).
2. the art of computation with the Arabic figures, one to nine, plus the zero; arithmetic.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.