diploid

American  

[dip-loid] / ˈdɪp lɔɪd /

adjective

1. double; twofold.

2. Biology. having two similar complements of chromosomes.

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noun

1. Biology. an organism or cell having double the basic haploid number of chromosomes.

2. Crystallography. a solid belonging to the isometric system and having 24 trapezoidal planes.

diploid British  

/ ˈdɪplɔɪd /

adjective

1. biology (of cells or organisms) having pairs of homologous chromosomes so that twice the haploid number is present

2. double or twofold

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noun

1. biology a diploid cell or organism

diploid Scientific  

/ dĭp′loid′ /

1. Having paired sets of chromosomes in a cell or cell nucleus. In diploid organisms that reproduce sexually, one set of chromosomes is inherited from each parent. The somatic cells of most animals are diploid.

2. Compare haploid See Note at mitosis

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Other Word Forms

• diploidic adjective
• diploidy noun

Etymology

Origin of diploid

First recorded in 1905–10; dipl(o)- + -oid

Example Sentences

The team traced the source of resistance to a wild diploid banana known as Calcutta 4.

From Science Daily • Feb. 19, 2026

The cranberry is a diploid, which means that each cell contains one set of chromosomes from the maternal parent and one set from the paternal parent.

From Salon • Nov. 9, 2023

And diploid crops tend to have fewer genes associated with a single trait, which makes breeding them to emphasize that trait much simpler.

From Salon • Nov. 9, 2023

In the case of sexual fertilisation, the simple chromosome sets from the egg and sperm cells come together to create a double -- diploid -- chromosome set.

From Science Daily • Oct. 4, 2023

The resulting individual is normal in every respect except that instead of the usual diploid number it has only the single or haploid number of chromosomes.

From Being Well-Born An Introduction to Eugenics by Guyer, Michael F.