Ferrule meaning

fĕrəl
A metal ring or cap placed around a pole or shaft for reinforcement or to prevent splitting.
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The definition of a ferrule is a metal ring or cap placed on the end of something to secure the end, or a short tube for tightening a joint.

An example of a ferrule is a cap at the end of a cane.

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A metal band or cap placed around a shaft to reinforce it or to prevent splitting.

1986. “Lucas withdrew the cane. Its polished ferrule flashed in the lantern glare”. Count Zero. William Gibson.

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A bushing for securing a pipe joint.
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A metal sleeve placed inside a gutter at the top.
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In billiards, the plastic band attaching the tip to the cue.
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In painting, the pinched metal band which holds the bristles of a brush to the shaft.
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On an ice axe, the metal spike at the end of the shaft.
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A bushing used to secure a pipe joint.
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A metal ring or cap put around the end of a cane, tool handle, etc. to prevent splitting or to give added strength.
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(mech.) A short tube or bushing for tightening a joint.
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To furnish with a ferrule.
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A ceramic, plastic or stainless steel part of a fiber-optic plug that holds the end of the fiber and precisely aligns it to the socket. The fiber is inserted into the ferrule and cemented with an epoxy or adhesive, which gives it long-term mechanical strength and prevents contamination from the weather. Connectors may also use crimped ferrules that do not require cement. The ferrule is the most important and costly part of a fiber connector. If its length, hole centering and inside and outside diameters are not exact, a poor connection will result. See fiber optics glossary.
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Other Word Forms

Noun

Singular:
ferrule
Plural:
ferrules

Origin of ferrule

  • Alteration (influenced by Latin ferrum iron) of Middle English verrele from Old French virole from Latin viriola little bracelet diminutive of viriae bracelets wei- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From earlier verrel, altered under the influence of Latin ferrum (“iron”), from Old French virole (“ferrule”), from Latin viriola (“little bracelet”), diminutive of viriæ (“bracelets”), from Gaulish.

    From Wiktionary