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Having three times the haploid number of chromosomes in the cell nucleus: triploid somatic cells.
A triploid organism or cell.

trip′loi·dy n.


(Biology) having or relating to three times the haploid number of chromosomes: a triploid organism.
(Biology) a triploid organism
[C19: from Greek tripl(oos) triple + (hapl)oid]


(ˈtrɪp lɔɪd)
1. having a chromosome number that is three times the basic or haploid number.
2. a triploid cell or organism.
trip′loi•dy, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.triploid - of a cell or organism having three complete sets of chromosomes; "human triploid fetuses are usually spontaneously aborted"
genetic science, genetics - the branch of biology that studies heredity and variation in organisms
polyploid - of a cell or organism having more than twice the haploid number of chromosomes; "a polyploid cell"; "a polyploid species"
References in periodicals archive ?
For the first time in the world, the scientists of the Institute obtained triploid apple varieties from purposeful crossings.
Long-term survival in a 69,XXX triploid premature infant.
An increase in temperature accelerates the release of the polar bodies in diploid and triploid oysters (Eudeline et al.
Growth performance comparison of intercross-triploid, induced triploid, and diploid rainbow trout.
The corresponding bipronuclear stage would be classified as normal and could develop into a diandric triploid embryo.
However, growth responses of both diploid and triploid organisms partially depend on the environmental conditions.
Therefore, an understanding of the species' reproductive ecology would be of value, as it would help us better understand why triploid and tetraploid lineages of Galax have arisen so frequendy, the overall lack of genetic differences among cytotypes (Servick et al.
Dilation and Evacuation Specimens With Abnormal Karyotype and Presence or Absence of Pathologic Findings Cases With Abnormal Karyotype Total Findings, No, (%) Karyotypes with known structural effects Trisomy 21 92 53 (58) Trisomy 18 36 32 (89) Trisomy 13 13 12 (92) Turner syndrome (45,X) 6 4 (67) Trisomy 9, mosaic 2 1 (50) Trisomy 16, mosaic 1 0 (0) Triploid for chromosome 21, 1 1 (100) 18, and 13 Triploid for chromosome 21 and 18 1 1 (100) Triploid for chromosome 21 and 13 1 0 (0) Fragile X syndrome 1 0 (0) 47,XXY 2 0 (0) 48,XXYY 1 1 (100) Karyotypes with uncharacterized structural effects Deletion syndromes (a) 6 3 (50) 45,XY,der(18;21)(q10;10) 1 0 (0) 46,XY,der(8)t(8;8)(p23.
These triploid fish, produced by subjecting fertilized eggs to a pressure shock, can't reproduce and therefore wouldn't proliferate or pollute the wild gene pool.
Of 101 female alates sampled, the percentage of triploid individuals for the 3 Gp-9 genotypes was the following: 23 of 86 BB (26.
In the putative diploid and triploid plants, the nuclei appeared at a relative nuclear DNA content of 130 and 190 (channel number), respectively.