Pronunciation: (dī'u-spôr", -spōr"), [key]
1. a mineral, aluminum oxyhydroxide, AlO(OH), occurring in crystals, or more usually in lamellar or scaly masses: a principal constituent of bauxite and an important source of aluminum.
2. Bot.a disseminule, esp. one that undergoes dispersal.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.