quadruplet

noun

qua·​dru·​plet kwä-ˈdrü-plət  -ˈdrə- 

ˈkwä-drə-plət

1

: a combination of four of a kind

2

: one of four offspring produced in the same pregnancy

3

: a group of four musical notes to be performed in the time ordinarily given to three of the same kind

Examples of quadruplet in a Sentence

Recent Examples on the Web

After his death on Saturday, the couple’s devoted followers began to donate once again to the GoFundMe that was originally created when the quadruplets were born. — Sam Gillette, PEOPLE, 25 June 2026

We were joined at the vineyard by Hayden, one of the quadruplets, and Colton, who had just graduated from high school. — Reeves Wiedeman, Curbed, 22 June 2026

In a similar case, Hannah Castle took to TikTok in September 2025 after receiving a $4 million medical bill after giving birth to quadruplets who also required NICU care. — Maia Niguel Hoskin, Forbes.com, 27 Jan. 2026

Identical quadruplets are among the rarest naturally occurring births in the world, with estimates ranging from one in 10 million to one in 15 million pregnancies. — Daniella Gray, MSNBC Newsweek, 3 Oct. 2025

Word History

First Known Use

1709, in the meaning defined at sense 1

Kids Definition

quadruplet

noun

qua·​dru·​plet kwä-ˈdrü-plət  -ˈdrəp-lət 

ˈkwäd-rə-plət

1

: a combination of four of a kind

2

: one of four offspring born at one birth

Medical Definition

quadruplet

noun

qua·​dru·​plet kwä-ˈdrəp-lət  -ˈdrüp-; ˈkwäd-rəp- 

1

: one of four offspring born at one birth

2

quadruplets plural : a group of four offspring born at one birth