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Ferrule vs Undefined - What's the difference?

ferrule | undefined |

As a noun ferrule

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

As an adjective undefined is

lacking a definition or value.

ferrule

English

Noun

(en noun)
  • A metal band or cap placed around a shaft to reinforce it or to prevent splitting.
  • * {{quote-book, year=1905, author=
    • , title= , chapter=2 citation , passage=The cane was undoubtedly of foreign make, for it had a solid silver ferrule at one end, which was not English hall–marked.}}
    1986'. “Lucas withdrew the cane. Its polished '''ferrule flashed in the lantern glare”. ''Count Zero .
  • A bushing for securing a pipe joint.
  • A metal sleeve placed inside a gutter at the top.
  • In billiards, the plastic band attaching the tip to the cue.
  • In painting, the pinched metal band which holds the bristles of a brush to the shaft.
  • On an ice axe, the metal spike at the end of the shaft.

    • undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined