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单词 homolecithal
释义

> as lemmas

homolecithal
homolecithal adj.
Brit. /ˌhəʊmə(ʊ)ˈlɛsᵻθl/
,
/ˌhɒmə(ʊ)ˈlɛsᵻθl/
,
U.S. /ˌhoʊməˈlɛsəθ(ə)l/
,
/ˌhɑməˈlɛsəθ(ə)l/
[Greek λέκῐθος yolk of an egg] Embryology (of an egg cell) having the yolk uniformly distributed throughout the cytoplasm.
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [adjective] > ovum > yolk
yolked1584
vitelliferous1819
vitelline1835
yolk1836
vitellary1847
vitelligenous1859
vitelligine1864
vitellogenous1878
alecithal1880
centrolecithal1880
heterolecithal1892
homolecithal1892
vitelligerous1898
isolecithal1926
ovovitelline1945
vitellogenetic1961
vitellogenic1964
1892 E. L. Mark tr. O. Hertwig Text-bk. Embryol. i. 28 The translator has been accustomed for several years to use the word homolecithal instead of alecithal, heterolecithal being employed as a coördinate term to embrace telolecithal and centrolecithal eggs.
1914 W. E. Kellicott Textbk. Gen. Embryol. iii. 93 It is often difficult to distinguish the telolecithal egg from the homolecithal type.
1958 B. M. Patten Found. Embryol. iv. 78 In the egg of Amphioxus the yolk is relatively meager in amount and fairly uniformly distributed throughout the cell. An ovum with such a yolk distribution is termed isolecithal (homolecithal).
extracted from homo-comb. form
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