Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun One of four offspring born in a single birth.
  • noun A group or combination of four associated by common properties or behavior.
  • noun Music A group of four notes having the time value of three notes of the same kind.

from The Century Dictionary.

  • noun Any combination of four objects or parts grouped, united, or acting together: as, a quadruplet of springs, consisting of four elliptic springs coupled together and acting as one spring. Also called quartet.
  • noun One of four born at a single birth.
  • noun A bicycle for four riders.
  • noun In music, same as quartole.

from the GNU version of the Collaborative International Dictionary of English.

  • noun A collection or combination of four of a kind.
  • noun Four children born in the same labor.
  • noun A cycle for carrying four riders, so arranged that all the riders can assist in the propulsion.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun One of a group of four babies born from the same mother during the same birth.
  • noun Sequence of four elements.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun one of four children born at the same time from the same pregnancy
  • noun a set of four similar things considered as a unit
  • noun the cardinal number that is the sum of three and one

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[From quadruple (modeled on triplet).]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From quadruple and -et.

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Examples

Comments

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  • "A cycle for carrying four riders, so arranged that all the riders can assist in the propulsion."

    --GNU Webster's 1913

    August 1, 2012