noun
BiologyA hybrid polyploid organism having a diploid set of chromosomes derived from each of its parents; a double diploid.
adjective
BiologyDesignating an allotetraploid; of or relating to such an organism.
Origin
1930s. From allo- + tetraploid, probably after German Allotetraploid (noun), allotetraploid (adjective) (both 1929 or earlier).
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