Source : Webster's Revised Unabridged Dictionary (1913)

Bicuspid \Bi*cus"pid\, Bicuspidate \Bi*cus"pid*ate\, a. [See
   pref. {Bi-}, and {Cuspidate}.]
   Having two points or prominences; ending in two points; --
   said of teeth, leaves, fruit, etc.

Bicuspid \Bi*cus"pid\, n. (Anat.)
   One of the two double-pointed teeth which intervene between
   the canines (cuspids) and the molars, on each side of each
   jaw. See {Tooth}, n.

Source : WordNet®

bicuspid
     adj : having two cusps or points (especially a molar tooth);
           "bicuspid teeth"; "bicuspid leaves" [syn: {bicuspidate}]

bicuspid
     n : a tooth having two cusps or points; located between the
         incisors and the molars [syn: {premolar}]