triploidn.adj.
/ˈtrɪplɔɪd/, U.S. /ˈtrɪplɔɪd/ A. n.
1. Surgery. (See quot.) rare (? Obsolete).
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the world > health and disease > healing > medical appliances or equipment > surgical instruments > [noun] > instrument for raising depressed bone
griffin's foot1611
elevatory1617
levatory1617
levator1672
triploid1750
lever1846
trepanning-elevator1877
1706 Phillips's New World of Words (new ed.) Triploides.]
1750 Mem. Royal Acad. Surg. Paris I. 162–3 The instruments hitherto used to raise the bones of the cranium depressed on the dura mater are..the triploid... This instrument has three feet or branches like a tripod.
2. A triploid organism (see below).
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the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > ploidy > individual
haploid1908
tetraploid1914
haplont1918
hexaploid1921
pentaploid1921
pseudotetraploid1923
octoploid1926
triploid1927
allopolyploid1928
autopolyploid1928
polyploid1928
hyperdiploid1929
allotetraploid1930
autotetraploid1930
hyperploid1930
hypoploid1930
autoploid1932
polysomic1933
mixoploid1939
monoploid1944
amphiploid1945
merozygote1956
merodiploid1964
1927 Jrnl. Genetics 18 183 These five are all the configurations which have been seen among several hundred trivalents of triploids..in Datura and Canna.
1957 R. A. Beatty Parthenogenesis & Polyploidy in Mammalian Devel. iv. 59 Three of the young [rabbits] lived nearly a year, being the two ‘triploids’ and a presumed diploid male.
1973 Nature 11 May 87/2 Triploids.., artificial tetraploids and octoploids were all found to synthesize orientin isomers.
B. adj.
Genetics. [Compare -ploid comb. form.] (Made up of somatic cells) containing three sets of chromosomes.
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the world > life > biology > biological processes > genetic activity > genetic components > [adjective] > chromosome > ploidy
haploid1906
amphikaryotic1909
polyenergid1911
polyploid1911
triploid1911
tetraploid1914
hexaploid1920
octoploid1921
pentaploid1921
triplex1921
orthoploid1923
aneuploid1924
heteroploid1926
allopolyploid1927
monoploid1928
haplontic1929
hyperdiploid1929
amphidiploid1930
hyperploid1930
hypoploid1930
polysomic1930
mixoploid1931
allotetraploid1932
autopolyploid1934
autotetraploid1935
autoploid1937
polysomatic1937
monosomatic1939
polyploidizing1941
polyploidogenic1944
amphiploid1945
merodiploid1961
pseudodiploid1963
1911 Ann. Bot. 25 933 There is not, so far as I am aware, a single case of a species whose sporophyte has the triploid number of chromosomes.
1930 Times Lit. Suppl. 10 July 578/3 Triploid apples (e.g., Bramley's Seedling) fruit well.
1930 Jrnl. Genetics 22 129 Earlier workers have shown that seventeen is the haploid number of chromosomes in the genus Pyrus (including Malus) and that cultivated forms are diploid and triploid.
1971 Nature 7 May 49/2 If a diploid spermatozoon fertilizes a normal ovum, the resulting zygote would be triploid.
Derivatives
ˈtriploidy n. the state of being triploid.
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the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > ploidy
triploidy1916
tetraploidy1918
haploidy1921
hexaploidy1922
polyploidy1922
octoploidy1924
aneuploidy1925
heteroploidy1926
allopolyploidy1927
autopolyploidy1928
hyperdiploidy1929
polysomy1929
hyperploidy1930
hypoploidy1930
mixoploidy1931
syndiploidy1932
allotetraploidy1933
autotetraploidy1935
monoploidy1937
polysomaty1937
ploidy1940
pseudodiploidy1965
polysomatism1967
1916 Genetics 1 237 It seems probable that we have in these plants examples of triploidy (21 chromosomes).
1961 Lancet 5 Aug. 318/1 A malformation syndrome associated with triploidy.
1976 Cytogenetics & Cell Genetics XVII. 144 Triploidy or diploid/triploid chimerism has been reported in man.
1982 Annals Human Genetics XLVI. 223 Human triploidy is a common condition.
This entry has not yet been fully updated (first published 1915; most recently modified version published online March 2022).
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n.adj.1750