The Collaborative International Dictionary of English v.0.48:

Otis \O"tis\, prop. n. [L., a kind of bustard, Gr. ?.] (Zool.)
   A genus of birds including certain of the bustards.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Otis
    n 1: United States inventor who manufactured the first elevator
         with a safety device (1811-1861) [syn: Otis, Elisha
         Graves Otis]
    2: type genus of the Otididae: European bustard [syn: Otis,
       genus Otis]