Plowshare

Plowshare

In agriculture, a plowshare (or ploughshare) is a component of a plow (plough). It is the cutting or leading edge of a moldboard which closely follows the coulter (one or more ground-breaking spikes) when plowing (ploughing).

The plowshare itself is often a hardened blade dressed into an integral mouldboard (by the blacksmith) so making a unified combination of plowshare and moldboard, the whole being responsible for entering the cleft in the earth (made by the coulter's first cutting-through) and turning the earth over.

In well-tilled terrain the plowshare may do duty without a preceding coulter.

In modern ploughs both coulter and plowshare are detachable for easy replacement when worn or broken.

External links

* [http://www.rotherhamweb.co.uk/h/plough.htm The Rotherham Plough - the first commercially successful iron plough]


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  • Plowshare — Plow share , Ploughshare Plough share , n. The share of a plow, or that part which cuts the slice of earth or sod at the bottom of the furrow. [1913 Webster] {Plowshare bone} (Anat.), the pygostyle. [1913 Webster] …   The Collaborative International Dictionary of English

  • plowshare — late 14c., from PLOW (Cf. plow) + SHARE (Cf. share) (n.2). To beat swords into plowshares is from Isaiah 2:4 …   Etymology dictionary

  • plowshare — [plou′sher΄] n. the share, or cutting blade, of a moldboard plow …   English World dictionary

  • plowshare — noun Etymology: Middle English ploughshare, from plough plow + schare plowshare more at share Date: 14th century a part of a plow that cuts the furrow …   New Collegiate Dictionary

  • Plowshare bone — Plowshare Plow share , Ploughshare Plough share , n. The share of a plow, or that part which cuts the slice of earth or sod at the bottom of the furrow. [1913 Webster] {Plowshare bone} (Anat.), the pygostyle. [1913 Webster] …   The Collaborative International Dictionary of English

  • plowshare — /plow shair /, n. the cutting part of the moldboard of a plow; share. [1350 1400; ME plowghschare. See PLOW, SHARE2] * * * …   Universalium

  • plowshare — noun The cutting edge of a plow, typically a metal blade. And he shall judge among the nations, and shall rebuke many people: and they shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up sword… …   Wiktionary

  • plowshare — plow|share [ plau,ʃer ] noun count the curved blade of a PLOW …   Usage of the words and phrases in modern English

  • plowshare — [[t]pla͟ʊʃeə(r)[/t]] plowshares see ploughshare …   English dictionary

  • plowshare — n. part of a plow, blade of a plow that cuts into the soil …   English contemporary dictionary

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