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proerythroblast
proerythroblast n. 
/ˌprəʊᵻˈrɪθrə(ʊ)blast/,
Brit. /ˌprəʊᵻˈrɪθrə(ʊ)blɑːst/
, /ˌprəʊᵻˈrɪθrə(ʊ)blɑːst//ˌprəʊᵻˈrɪθrə(ʊ)blast/U.S. /ˌproʊəˈrɪθrəˌblæst/
[after Italian proeritroblasti ( A. Ferrata Morfologia del sangue (1912) v. 232)] Physiology the earliest of the immature forms recognizable as precursors of an erythrocyte, characterized by a large nucleus with nucleoli and by basophilic cytoplasm./ˌproʊəˈrɪθrəˌblæst/ΘΚΠ
the world > life > the body > vascular system > blood > components of blood > blood corpuscle or plate > [noun] > red cells or corpuscles
globule1674
red corpuscle1747
red blood disc1835
red cell1843
red blood corpuscle1844
pneumocyte1872
poikilocyte1886
haematid1888
normoblast1889
polychromatic normoblast1899
normocyte1900
spherocyte1908
polychrome1909
siderocyte1915
reticulocyte1922
proerythroblast1927
target cell1938
acanthocyte1952
sideroblast1954
1927 A. Piney Recent Adv. in Hæmatol. ii. 29 They contend that all sorts of transitions can be found between large non-hæmoglobiniferous cells (pro-erythroblasts) and the mature, fully hæmoglobiniferous corpuscle.
1969 F. G. J. Hayhoe & R. J. Flemans Atlas Haematol. Cytol. (1970) i. 7 The proerythroblast is not itself the functional stem cell serving as a self-maintaining progenitor of the normoblast series.
1994 Biochimica et Biophysica Acta 1201 85 ALA synthase activity..diminished as the cells matured with an overall five fold loss of activity from proerythroblast to late erythroblast development.
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