Dictionary.com
definitions

septuplet

[ sep-tuhp-lit, -too-plit, -tyoo- ]
/ sɛpˈtʌp lɪt, -ˈtu plɪt, -ˈtyu- /

noun

any group or combination of seven.
one of seven offspring born at one birth.
septuplets, seven offspring born at one birth.
Music. a group of seven notes of equal value performed in the same amount of time normally taken to perform four or six.

RELATED CONTENT

What Are Some Words For Sibling Pairs?These days, giving birth to twins is increasingly common. As many as 5 out of every 1,000 babies born shared a womb with their sibling. While cute and adorable are some starter words to use when welcoming new babies, here's a look at the lexicon to haul out when welcoming multiples!
READ MORE

Nearby words

  1. septulum,
  2. septum,
  3. septum pellucidum,
  4. septum penis,
  5. septuple,
  6. septuplicate,
  7. sepulcher,
  8. sepulcher, holy,
  9. sepulchral,
  10. sepulchre

Origin of septuplet

First recorded in 1890–95; septuple + -et
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for septuplet

septuplet

/ (sɛpˈtjuːplɪt, ˈsɛptjʊplɪt) /

noun

music a group of seven notes played in a time value of six, eight, etc
one of seven offspring produced at one birth
a group of seven things
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012