单词 | neoblast |
释义 | neoblast/ˈnɪə(ʊ)blɑːst/ /ˈnɪə(ʊ)blast/noun 1 Zoology. In a planarian or other worm: any of the large undifferentiated cells in various worms, especially planarian flatworms, whose division brings about the regeneration of lost portions of the body. 2 Geology. A crystalline grain in a rock, especially a metamorphic rock, that is of more recent formation than other grains in the rock. OriginLate 19th century. From neo- + -blast. Compare slightly earlier neoblastic. |
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