Wordnet 3.0
NOUN (1)
1. 
 nocturnal arboreal primate of Indonesia and the Philippines having huge eyes and digits ending in pads to facilitate climbing; 
 the only primate that spurns all plant material as food living entirely on insects and small vertebrates; 
The Collaborative International Dictionary of English v.0.48:
Tarsier \Tar"si*er\, n. [Cf. F. tarsier.]
   See Tarsius.
   [1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Tarsius \Tar"si*us\, n. [NL. See Tarsus.] (Zool.)
   A genus of nocturnal lemurine mammals having very large eyes
   and ears, a long tail, and very long proximal tarsal bones;
   -- called also malmag, spectral lemur, podji, and
   tarsier.
   [1913 Webster]
WordNet (r) 3.0 (2006):
tarsier
    n 1: nocturnal arboreal primate of Indonesia and the Philippines
         having huge eyes and digits ending in pads to facilitate
         climbing; the only primate that spurns all plant material
         as food living entirely on insects and small vertebrates