a small, arboreal, nocturnal primate of the genus Tarsius, of Indonesia and the Philippines, having a long thin tail, very large immobile eyes, and prominent pads on the fingers and toes: all populations are dwindling.
tar·si·er (tär'sē-ər, -sē-ā') n. Any of several small nocturnal arboreal primates of the genus Tarsius, of the East Indies and the Philippines, having large round eyes, a long tail, and long fingers and toes tipped with soft disklike pads.
[French, from tarse, tarsus (from its elongated ankles), from New Latin tarsus; see tarsus.]