tetraploid

American  

[te-truh-ploid] / ˈtɛ trəˌplɔɪd /

adjective

Biology.

1. having a chromosome number that is four times the basic or haploid number.

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noun

1. a tetraploid cell or organism.

tetraploid British  

/ ˈtɛtrəˌplɔɪd /

adjective

1. having four times the haploid number of chromosomes in the nucleus

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noun

1. a tetraploid organism, nucleus, or cell

Other Word Forms

• tetraploidy
  noun

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Etymology

Origin of tetraploid

First recorded in 1925–30; tetra- + -ploid

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Example Sentences

See Examples For:

tetraploid

To investigate, Sweet and Bloomfield compared tumors that developed from ordinary diploid cancer cells with those formed from tetraploid cancer cells.

From Science Daily ● Oct. 15, 2026

The researchers discovered that tetraploid cancer cells were encouraging the recruitment of stromal cells, which are noncancerous connective tissue cells that help provide structural support.

From Science Daily ● Oct. 15, 2026

The result was a type of cell known as a tetraploid cell, which contains four complete sets of chromosomes rather than the usual two.

From Science Daily ● Oct. 15, 2026

After producing tetraploid cells from human cancer cells and establishing colonies derived from individual cells, he noticed that the resulting groups were not all the same size.

From Science Daily ● Oct. 15, 2026

So far as we know, all of the species have a constant number within the genus except the hickories where we have tetraploid species and diploid species.

From Northern Nut Growers Association Report of the Proceedings at the 43rd Annual Meeting Rockport, Indiana, August 25, 26 and 27, 1952 by Northern Nut Growers Association

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