quadruplet

Definition of Quadruplet in English :

the cardinal number that is the sum of three and one

2. quad, quadruplet

one of four children born at the same time from the same pregnancy

a set of four similar things considered as a unit

WordNet Lexical Database for English. Princeton University. 2010.

Quadruplet

noun

1.

one of four offspring born at one birth

. Often shortened to: quad

2.

a group or set of four similar things

3. music

a group of four notes to be played in a time value of three

noun

1.

any of four offspring from the same pregnancy

2.

a collection or group of four, usually of one kind

n.

1. One of four offspring born in a single birth.

2. A group or combination of four associated by common properties or behavior.

3. Music A group of four notes having the time value of three notes of the same kind.