hypodermis
plural of urothoid
An epidermal layer of cells that secretes an overlying chitinous cuticle, as in arthropods. / (botany) A layer of cells lying immediately below the epidermis.
present participle of skate one's lane
(US) A traditional double-ended bicycle wrench with a selection of usually 10 sizes—five on each end—arranged in a ball form.
脱皮の際、上にキチン質の外被を分泌する表皮層が古い殻の下で新しいキチン質の外被を作る。
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