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Cornet vs Undefined - What's the difference?

cornet | undefined |

As a noun cornet

is a musical instrument of the brass family, slightly smaller than a trumpet, usually in the musical key of b-flat or cornet can be the white headdress worn by the (sisters of charity).

As an adjective undefined is

lacking a definition or value.

cornet

English

(wikipedia cornet)

Etymology 1

From (etyl) cornet, diminutive of a popular reflex of (etyl) .

Noun

(en noun)
  • A musical instrument of the brass family, slightly smaller than a trumpet, usually in the musical key of B-flat.
  • A piece of paper twisted to be used as a container.
  • A pastry shell to be filled with ice-cream, hence (UK) an ice cream cone.
  • (obsolete) A troop of cavalry; so called from its being accompanied by a cornet player.
  • * Clarendon
    • A body of five cornets of horse.
  • A kind of organ stop.
    • Derived terms
    * (l)

    Etymology 2

    From (etyl) cornette, diminutive of corne, from (etyl) .

    Noun

    (en noun)
  • The white headdress worn by the (Sisters of Charity).
  • (obsolete) The standard flown by a cavalry troop.
  • (historical) The fifth commissioned officer in a cavalry troop, who carried the colours (equivalent to the ensign in infantry).
    • Derived terms
    * cornetcy

    Anagrams

    * ----

    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