单词 | ectoderm |
释义 | Word Frequency ectoderm(ˈɛktəʊˌdɜːm) or exoderm noun the outer germ layer of an animal embryo, which gives rise to epidermis and nervous tissue See also mesoderm, endoderm Derived forms ectodermal (ˌectoˈdermal) or ectodermic (ˌectoˈdermic) adjective |
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