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• Coulter
  Coulter

  noun

  John Merle 1851–1928, U.S. botanist.
• coulter
  coulter

  noun

  a blade or sharp-edged disc attached to a plough so that it cuts through the soil vertically in advance of the ploughshare

Coulter

American  

[kohl-ter] / ˈkoʊl tər /

noun

1. John Merle 1851–1928, U.S. botanist.

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coulter British  

/ ˈkəʊltə /

noun

1. Also (esp US): colter.  a blade or sharp-edged disc attached to a plough so that it cuts through the soil vertically in advance of the ploughshare

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Etymology

Origin of coulter

Old English culter, from Latin: ploughshare, knife

Example Sentences

At more than 4,000 feet, up in the Cuyamaca Mountains, it rests among coastal live oak woodlands and Coulter pine forests.

From Los Angeles Times • Apr. 7, 2026

After the deal closes, Masimo is expected to operate as a stand-alone company within Danaher’s Diagnostics segment, alongside other businesses Radiometer, Leica Biosystems, Cepheid and Beckman Coulter Diagnostics, the people familiar with the matter said.

From The Wall Street Journal • Feb. 17, 2026

There’s Jim Coulter, executive chairman and a founding partner of TPG, who now helps lead the firm’s impact and environmental investing practices.

From Barron's • Dec. 5, 2025

So do Internet provocateurs, represented here by Ann Coulter, pretty much playing herself and proving that it isn’t an act.

From Salon • Oct. 22, 2025

“Mrs. Coulter is in the hands of King Ogunwe, and on her way to Lord Asriel.”

From "The Amber Spyglass" by Philip Pullman