Source : Webster's Revised Unabridged Dictionary (1913)

Cultrate \Cul"trate\ (k?l"tr?t), Cultrated \Cul"tra*ted\
   (-tr?-t?d), a. [L. cultratus knife-shaped, fromculter,
   cultri, knife.] (Bot. & Zo["o]l.)
   Sharp-edged and pointed; shaped like a pruning knife, as the
   beak of certain birds.