单词 | pterygoblast |
释义 | > as lemmaspterygoblast ΚΠ 1885 J. A. Ryder in Amer. Naturalist 19 201 These rudiments of the embryonic filaments bear a..resemblance to cells found imbedded in the rays of Ceratodus... I will therefore call them pterygoblasts. < as lemmas |
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