Dictionary entry

Dicyemata

Webster's Dictionary 1913

‖Di′cy‐e″ma‐ta (?), n. pl. [NL., fr. Gr. δι- = δίσ- twice + � an embryo.] (Zoöl.) An order of worms parasitic in cephalopods. They are remarkable for the extreme simplicity of their structure. The embryo exists in two forms.