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septuplet

[sep-tuhp-lit, -too-plit, -tyoo-]
noun
  1. any group or combination of seven.
  2. one of seven offspring born at one birth.
  3. septuplets, seven offspring born at one birth.
  4. Music. a group of seven notes of equal value performed in the same amount of time normally taken to perform four or six.

Origin of septuplet

First recorded in 1890–95; septuple + -et
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for septuplet

septuplet

noun
  1. music a group of seven notes played in a time value of six, eight, etc
  2. one of seven offspring produced at one birth
  3. 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