hexaploid

1 of 2

adjective

hexa·​ploid ˈhek-sə-ˌplȯid How to pronounce hexaploid (audio)
: having or being six times the monoploid chromosome number
hexaploid noun
hexaploidy noun

hexaploidy

2 of 2

noun

hex·​a·​ploidy -dē How to pronounce hexaploidy (audio)
plural -es
: the condition of being hexaploid

Word History

Etymology

Adjective

International Scientific Vocabulary

First Known Use

Adjective

1912, in the meaning defined above

Time Traveler
The first known use of hexaploid was in 1912

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Cite this Entry

“Hexaploid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hexaploid. Accessed 23 Jun. 2026.

Medical Definition

hexaploid

adjective
hexa·​ploid ˈhek-sə-ˌplȯid How to pronounce hexaploid (audio)
: having or being six times the monoploid chromosome number
hexaploid noun
hexaploidy noun
plural hexaploidies
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