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macrochromosome
macrochromosome n.
Brit. 
/ˌmakrə(ʊ)ˈkrəʊməsəʊm/
, /ˌmakrə(ʊ)ˈkrəʊməsəʊm/U.S. /ˌmækroʊˈkroʊməˌsoʊm/
Biology a large chromosome, esp. in the karyotype of a bird or reptile./ˌmækroʊˈkroʊməˌsoʊm/ΘΚΠ
the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > types of chromosome
chromoplastid1885
accessory chromosome1899
chromoplast1902
X1902
heterochromosome1904
idiochromosome1905
macrochromosome1905
allosome1906
autosome1906
monosome1906
sex chromosome1906
supernumerary1907
X chromosome1911
Y chromosome1911
univalent1912
euchromosome1914
W1917
monosome1921
tetrasome1921
trisome1921
heterosome1938
isochromosome1939
trisomic1939
metacentric1945
acrocentric1949
polycentric1953
Philadelphia chromosome1961
monocentric1979
1905 E. B. Wilson in Jrnl. Exper. Zool. 2 375 Especially large or small chromosomes may be designated as ‘macrochromosomes’ or ‘microchromosomes’, irrespective of their behavior.
1987 E. W. Burr Compan. Bird Med. xxviii. 199/1 Heterochromatic composition of W chromosomes is uniform, which enhances their identity from other macrochromosomes with large nonfluorescing areas.
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as lemmas