the GNU version of the Collaborative International Dictionary of English
adj. Having the quality of duplicating or doubling.
adj. Having the quality of subdividing into two by natural growth.
The Century Dictionary and Cyclopedia
Having the quality of duplicating or doubling; especially, in physiology, having the quality of duplicating or dividing into two by natural growth or spontaneous division.
Word Usage
"Sampson expressed concerns about what he called a duplicative federal resolution and assessment authority, as well as potentially duplicative authority within the ONI."