| 单词 | yolk store |
| 释义 | > as lemmasyolk store yolk store n. the supply of deutoplasm or yolk (sense 1c) available to the developing embryo. Π 1893 H. G. Wells Text-bk. Biol.: Pt. II 136 There are no free larval stages such as occur in the case of the crab or frog, where the yolk store is less abundant. 1969 Jrnl. Animal Ecol. 38 801 Young leeches attached themselves to their parents after hatching, and remained thus for some time after their yolk store had been used up. 2004 P. H. O'Farrell in Cell Growth i. 18 A frog such as Xenopus has an egg that is large (1 mm in diameter) by some standards, with substantial yolk stores. < as lemmas |
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