The Collaborative International Dictionary of English v.0.48:
Masai \Masai\ prop. n. 1. A Nilotic language. [WordNet 1.5] 2. An African tribe inhabiting parts of Kenya and Tanzania. [PJC] Note: Picture of Masai women and children standing by the roadside. (Photographed in Kenya 1983 by PJC) [PJC] MascagninWordNet (r) 3.0 (2006):
Masai n 1: a Nilotic language