n.
Pronunciation: kwä- ' drü-pli-k ə t
Function: adjective
Etymology: Latin quadruplicatus, past participle of quadruplicare to quadruple, from quadruplic-, quadruplex fourfold, from quadri- + -plic-, -plex fold ― more at -FOLD
Date: 1656
1 : consisting of or existing in four corresponding or identical parts or examples < quadruplicate invoices>
2 : being the fourth of four things exactly alike