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Noun germ layer has 1 sense
  1. germ layer - (embryology) any of the 3 layers of cells differentiated in embryos following gastrulation
    --1 is a kind of     embryonic tissue
    --1 has particulars:
     ectoderm, exoderm, ectoblast; mesoderm, mesoblast; endoderm, entoderm, endoblast, entoblast, hypoblast
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