monosomaticadj.

Brit.

/ˌmɒnə(ʊ)səˈmatɪk/, U.S.

/ˈˌmɑnəsəˈmædɪk/

Origin: Formed within English, by compounding. Etymons: mono- comb. form, somatic adj.

Etymology: < mono- comb. form + somatic adj. Compare polysomatic adj.

1. Geology. Consisting of a single crystal or a single mineral. Cf. polysomatic adj. 1a.

ΚΠ

1888 J. J. H. Teall Brit. Petrogr. 440 Monosomatic, a term applied to crystals and their inclusions when both belong to the same mineral species.

1920 Proc. National Acad. Sci. U.S.A. 6 453 The barred forms..are limited mainly, if not wholly, to monosomatic forms composed of olivine.

1981 Proc. Royal Soc. A. 374 165 In Quenggouk, a monosomatic olivine chondrule has a feldspar inclusion.

2. Genetics. Of a somatic tissue or cell of a plant: having the number of chromosomes typical of the species (usually the diploid number). Cf. polysomatic adj. 2.

ΘΚΠ

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

1939 Proc. National Acad. Sci. U.S.A. 25 335 Those nuclei with the typical (commonly diploid) number [of chromosomes] are monosomatic; those with multiples of this number are disomatic, tetrasomatic, etc.

1947 Bull. Torrey Bot. Club 74 450 In the Chenopodiaceae the dermatogen was wholly monosomatic whereas in Cucumis melo some polysomatic cells were usually present.

1986 Plant Physiol. 80 280 The occurrence of disomatic nuclei was independent of infection of nodule cells by rhizobia, because diploid plants had mostly disomatic nodule nuclei, and octoploid plants had mostly monosomatic nodule nuclei.

This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).

单词	monosomatic
释义	monosomaticadj. Brit. /ˌmɒnə(ʊ)səˈmatɪk/, U.S. /ˈˌmɑnəsəˈmædɪk/ Origin: Formed within English, by compounding. Etymons: mono- comb. form, somatic adj. Etymology: < mono- comb. form + somatic adj. Compare polysomatic adj. 1. Geology. Consisting of a single crystal or a single mineral. Cf. polysomatic adj. 1a. ΚΠ 1888 J. J. H. Teall Brit. Petrogr. 440 Monosomatic, a term applied to crystals and their inclusions when both belong to the same mineral species. 1920 Proc. National Acad. Sci. U.S.A. 6 453 The barred forms..are limited mainly, if not wholly, to monosomatic forms composed of olivine. 1981 Proc. Royal Soc. A. 374 165 In Quenggouk, a monosomatic olivine chondrule has a feldspar inclusion. 2. Genetics. Of a somatic tissue or cell of a plant: having the number of chromosomes typical of the species (usually the diploid number). Cf. polysomatic adj. 2. ΘΚΠ 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 1939 Proc. National Acad. Sci. U.S.A. 25 335 Those nuclei with the typical (commonly diploid) number [of chromosomes] are monosomatic; those with multiples of this number are disomatic, tetrasomatic, etc. 1947 Bull. Torrey Bot. Club 74 450 In the Chenopodiaceae the dermatogen was wholly monosomatic whereas in Cucumis melo some polysomatic cells were usually present. 1986 Plant Physiol. 80 280 The occurrence of disomatic nuclei was independent of infection of nodule cells by rhizobia, because diploid plants had mostly disomatic nodule nuclei, and octoploid plants had mostly monosomatic nodule nuclei. This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022). < adj.1888
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