From sub- + duplicate. <span class="searchmatch">subduplicate</span> (not comparable) (mathematics) Expressed by the square root; said of ratios. subdouble subduple Part or all of this...
photoduplicate photoduplicated preduplicate retroduplicate sesquiduplicate <span class="searchmatch">subduplicate</span> unduplicate unduplicated ^ Alexander M[ansfield] Burrill (1850–1851)...