单词	umbilical cord
释义	umbilical cord /ʌmˌbɪlɪk(ə)l ˈkɔːd / noun 1A flexible cord-like structure containing blood vessels and attaching a human or other mammalian fetus to the placenta during gestation.Stem cells are harvested from bone marrow, umbilical cords, the brain and spinal cord and other tissues.... Thus the fetus grows its own umbilical cord, containing its own blood vessels: two arteries and a single vein. Transplanting cord blood stem cells from placenta and umbilical cords have the same effect as a bone-marrow transplant. 1.1A flexible cable, pipe, or other line carrying essential services or supplies.This reliance on cumbersome logistics limited mobility, as armies tethered by umbilical cords of supply could not go too fast or too far.... ‘They are electronic umbilical cords to the workplace,’ says Joanne B. Ciulla, author of The Working Life: The Promise and Betrayal of Modern Work. I'm not going to argue that we deserve to drag our electronic umbilical cords everywhere.
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