Dicyemida
plural noun
Di·cy·e·mi·da
: an order or other division of Mesozoa comprising minute ciliated vermiform internal parasites of cephalopod mollusks and occurring in a nematogen phase in the young host and in a rhombogen phase in the sexually mature host compare orthonectida
Word History
Etymology
New Latin, from Dicyema, genus of Mesozoa (from di- + Greek kyēma embryo; from the 2 types of larvae produced at different stages) + -ida