Pronunciation: (ar'ō-rOOt", -root"), [key]
1. a tropical American plant, Maranta arundinacea, the rhizomes of which yield a nutritious starch.
2. the starch itself.
3. any of several other plants yielding a similar starch.
4. the starch of these plants, used in cooking as a binder or thickener.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.