单词	nephridium
释义	nephridium noun ne·​phrid·​i·​um ni-ˈfri-dē-əm  plural nephridia ni-ˈfri-dē-ə  : a tubular glandular excretory organ characteristic of various invertebrates nephridial ni-ˈfri-dē-əl  adjective Word History Etymology New Latin First Known Use 1877, in the meaning defined above Medical Definition nephridium noun ne·​phrid·​i·​um ni-ˈfrid-ē-əm  plural nephridia -ē-ə  : an excretory organ that is characteristic of various coelomate invertebrates (as annelid worms, mollusks, brachiopods, and some arthropods), occurs paired in each body segment or as a single pair serving the whole body, typically consists of a tube opening at one end into the coelom and discharging at the other end on the exterior of the body, is often lengthened and convoluted, and has glandular walls
随便看	noncritical noncrossover noncrushable noncrystalline nonculinary noncultivated noncultivation noncultivations noncultural noncum noncumulative noncurrent noncustodial noncustomer noncustomers noncyclic noncyclical noncyclically noncycliccer noncycliccest noncyclicer noncyclicest nonda nonda plum nondairier

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