transitive and intransitive verb (past and past participlequad·ru·pli·cat·ed, present participlequad·ru·pli·cat·ing, 3rd person present singularquad·ru·pli·cates)
Definition:
increase fourfold: to multiply something by four, or be multiplied by four
adjective
Definition:
with four parts: consisting of four identical or corresponding parts
noun (pluralquad·ru·pli·cates)
Definition:
one of four: any one of a set of four identical things or copies