[noun, adjective ok-too-pli-kit, -keyt, -tyoo-, -tuhp-li-; verb ok-too-pli-keyt, -kit, -tyoo-, -tuhp-li-]
  1. having or consisting of eight identical parts; eightfold.
  2. noting the eighth copy or item.
verb (used with object), oc·tu·pli·cat·ed, oc·tu·pli·cat·ing.
  1. to make eight copies of.
  2. to make eight times as great, as by multiplying.

Origin of octuplicate

< Latin octuplicātus, equivalent to octupl(us) octuple + plicātus folded (see plicate), on the model of quadruplus, quadruplicātus
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018