quin·tu·plet 
/kwɪnˈtʌplət, Brit ˈkwɪntjʊplət/ noun
plural quin·tu·plets /kwɪnˈtʌplət, Brit ˈkwɪntjʊplət/ noun [count] : one of five babies that are born at the same time to the same mother — usually plural ▪ She had (a set of) quintuplets. [=she gave birth to five babies] — compare quadruplet, sextuplet, triplet, twin
