NematodayoudaoicibaDictYouDict[Nematoda 词源字典]
a class of worms, Modern Latin compound of nemat- "thread" (from Greek nema, genitive nematos "thread," from stem of nein "to spin;" see needle (n.)) + -odes "like, of the nature of" (see -oid).[Nematoda etymology, Nematoda origin, 英语词源]