| 释义 |
alecithal, a. Embryol.|əˈlɛsɪθəl|
[f. a- 14 + Gr. λέκιθος yolk: see -al.]
Of an ovum: with little or no food-yolk.
1880Balfour Comp. 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. |