alecithaladj.

Brit.

/əˈlɛsᵻθl/, U.S.

/əˈlɛsəθ(ə)l/

Origin: A borrowing from Greek, combined with English elements. Etymons: a- prefix⁶, Greek λέκιθος , -al suffix¹.

Etymology: < a- prefix⁶ + ancient Greek λέκιθος yolk (see lecithin n.) + -al suffix¹.

Embryology.

Of an ovum: containing no yolk or little yolk; = microlecithal adj. at micro- comb. form 1a(d).

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

1880 F. M. Balfour Treat. Compar. Embryol. I. iii. 90 It is convenient to distinguish the ova which segment uniformly by some term; and I should propose for this the term alecithal, as implying that they are without food-yolk, or that what little food-yolk there is, is distributed uniformly. [Note] For this term as well as for the terms telolecithal and centrolecithal I am indebted to Mr. Lankester.

1913 W. E. Kellicott Textbk. Gen. Embryol. iii. 93 Some eggs have been described as alecithal, i.e., without yolk, but many of these have been found really to contain a small amount of quite uniformly distributed deutoplasm, and a truly alecithal egg is rarely if ever found.

1986 A. S. Romer & T. S. Parsons Vertebr. Body (ed. 6) v. 109 In some eggs, particularly those of amphioxus and mammals, there is little yolk. Such an egg may be termed microlecithal (alecithal is also sometimes used but should mean ‘without any yolk,’ which is not true of these forms).

2000 F. Punzo Desert Arthropods ii. 27 The eggs of apoikogenic scorpions can be alecithal (without yolk), isolecithal, or telolecithal.

This entry has been updated (OED Third Edition, September 2012; most recently modified version published online December 2021).

单词	alecithal
释义	alecithaladj. Brit. /əˈlɛsᵻθl/, U.S. /əˈlɛsəθ(ə)l/ Origin: A borrowing from Greek, combined with English elements. Etymons: a- prefix⁶, Greek λέκιθος , -al suffix¹. Etymology: < a- prefix⁶ + ancient Greek λέκιθος yolk (see lecithin n.) + -al suffix¹. Embryology. Of an ovum: containing no yolk or little yolk; = microlecithal adj. at micro- comb. form 1a(d). 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 1880 F. M. Balfour Treat. Compar. Embryol. I. iii. 90 It is convenient to distinguish the ova which segment uniformly by some term; and I should propose for this the term alecithal, as implying that they are without food-yolk, or that what little food-yolk there is, is distributed uniformly. [Note] For this term as well as for the terms telolecithal and centrolecithal I am indebted to Mr. Lankester. 1913 W. E. Kellicott Textbk. Gen. Embryol. iii. 93 Some eggs have been described as alecithal, i.e., without yolk, but many of these have been found really to contain a small amount of quite uniformly distributed deutoplasm, and a truly alecithal egg is rarely if ever found. 1986 A. S. Romer & T. S. Parsons Vertebr. Body (ed. 6) v. 109 In some eggs, particularly those of amphioxus and mammals, there is little yolk. Such an egg may be termed microlecithal (alecithal is also sometimes used but should mean ‘without any yolk,’ which is not true of these forms). 2000 F. Punzo Desert Arthropods ii. 27 The eggs of apoikogenic scorpions can be alecithal (without yolk), isolecithal, or telolecithal. This entry has been updated (OED Third Edition, September 2012; most recently modified version published online December 2021). < adj.1880
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