Definition of coulter
: a cutting tool (as a knife or sharp disc) that is attached to the beam of a plow, makes a vertical cut in the surface, and permits clean separation and effective covering of the soil and materials being turned under
Origin and Etymology of coulter
Middle English colter, from Old English culter & Old French coltre, both from Latin culter plowshare; akin to Greek skallein to hoe — more at shell
First Known Use: before 12th century
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