Colter
Pronunciation : Col"ter
Part of Speech : n.
Etymology : [AS. culter, fr. L. culter plowshare, knife. Cf. Cutlass.]
Definition : Defn: A knife or cutter, attached to the beam of a plow to cut the sward, in advance of the plowshare and moldboard. [Written also coulter.]
Source : Webster's Unabridged Dictionary, 1913