Dicyemata

• (n. pl.) An order of worms parasitic in cephalopods. They are remarkable for the extreme simplicity of their structure. The embryo exists in two forms.
Found on http://thinkexist.com/dictionary/meaning/dicyemata/

Dicyemata

Di`cy·e'ma·ta noun plural [ New Latin , from Greek di- = di`s- twice + ... an embryo.] (Zoology) An order of worms parasitic in cephalopods. They are remarkable for the extreme simplicity of their structure. The embryo exists in two forms.
Found on http://www.encyclo.co.uk/webster/D/61
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