from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Having more than two sets of chromosomes all derived from the same species.
  • noun An organism having more than two sets of chromosomes, all of which were derived from the same species.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective genetics Having more than two sets of chromosomes, derived from the same species, as a result of redoubling
  • noun Any organism of this kind.


Sorry, no etymologies found.


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  • amphidiploid: same as allotetraploid autopolyploid : polyploids created by chromosome duplication within a species basic chromosome number (monoploid number): the number of different chromosomes that make up a single complete (chromosome) set.

    Lynn Margulis: "Definitely a Darwinist" - The Panda's Thumb 2005


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  • a polyploid organism whose chromosome sets are all derived from a single parent species.

    (obvious really)

    January 22, 2008