duplicativeadj.n.
/ˈdjuːplɪkətɪv/ A. adj.
Having the quality of doubling; producing two instead of one.
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the world > relative properties > number > specific numbers > two > multiplication by two > [adjective] > making or becoming > having quality of
duplicativec1870
duplicable1928
c1870 Carpenter (O.) The multiplication of cells by duplicative subdivision.
B. n.
A doubling addition.
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the world > relative properties > number > specific numbers > two > multiplication by two > [noun] > a doubling addition or duplicate
reduplicate1816
repeat1841
duplicative1884
1884 Athenæum 23 Aug. 235/2 Clack, near Bradenstock, is the Celtic cleg, a hill..Clay Hill..is simply cleg, with a duplicative to make it intelligible.
This entry has not yet been fully updated (first published 1897; most recently modified version published online March 2018).
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adj.n.c1870