Pronunciation: (dOO"pli-kā'shun, dyOO"-), [key]
1. an act or instance of duplicating.
2. the state of being duplicated.
3. a duplicate.
4. Genetics.a type of chromosomal aberration in which a region of the chromosome is repeated.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.