Pronunciation: (mu-sī'), [key]
—pl. -sais, (esp. collectively) -sai.
1. a member of an African people inhabiting the highlands of Kenya and Tanzania and having a largely pastoral economy and a society based on the patrilineal clan.
2. the Nilotic language of the Masai. Also,Maasai.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.