I. ˈseptəpəl, (ˈ)sep|t(y)üp- adjective
Etymology: Late Latin septuplus, from Latin septem seven + -uplus (as in quadruplus quadruple) — more at seven
1. : consisting of seven : being seven times as great or as many : sevenfold
2. : taken by sevens or in groups of seven
II. noun
( -s )
: a sum seven times as great as another : a sevenfold amount : the seventh multiple
III. verb
( septupled ; septupled ; septupling -p(ə)liŋ ; septuples )
transitive verb
: to make seven times as much or as many
intransitive verb
: to become seven times as much or as many