DictionaryquadrupletChild from a birth of four
noun

quadruplet

kwah-DROO-plit/kwɑːˈdruːplət/

A set of four related units.

The four newborn siblings form a quadruplet beside their recovering mother.

A mother recovering after childbirth cradles one newborn while three other newborns lie in separate bassinets immediately beside her bed.
Etymology

The “fourfold” base was given the ending of triplet to name one of four children born together. The ending links the word to a birth group, rather than simply to an amount multiplied by four.

In context

Funny Local News21:49
four sets of quadruplet
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More examples

  • The code stores each point as a quadruplet of numbers.
  • All four quadruplets celebrate their birthday together.
  • The drummer plays a quadruplet in the space of three beats.

Forms

quadruplet · quadruplets

quadruple verb — To make four times as large.

Similar words

quartet
Quartet often refers to four performers or their music.
foursome
Foursome usually means four people doing an activity together.