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单词 protoblastoderm
释义

> as lemmas

protoblastoderm
protoblastoderm n. Biology Obsolete rare a thin layer of protoplasm surrounding the yolk in the ovum of an insect.
ΚΠ
1872 A. S. Packard Embryol. Stud. Hexapodous Insects in Mem. Peabody Acad. Sci. 1 iii. 6 The primitive blastodermic skin..or as it might be termed, protoblastoderm.
extracted from proto-comb. form
<
as lemmas
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