noun
BiologyA tetraploid organism in which the four sets of chromosomes are produced by the duplication of the chromosomes of a single diploid species.
adjective
BiologyOf an organism or population: characterized by autotetraploidy.
Origin
1930s; earliest use found in John Burdon Sanderson Haldane (1892–1964), geneticist. From auto- + tetraploid.
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