Definition of septuplet noun from the Oxford Advanced Learner's Dictionary

 

septuplet

 noun
noun
BrE BrE//ˈseptjʊplɪt//
 
; NAmE NAmE//sepˈtʌplət//
 
; BrE BrE//sepˈtjuːplɪt//
 
; NAmE NAmE//sepˈtuːplət//
 
 
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one of seven children born at the same time to the same mother Word Origin late 19th cent.: from late Latin septuplus, from Latin septem ‘seven’, on the pattern of words such as triplet.
See the Oxford Advanced American Dictionary entry: septuplet