Di`cy*e"ma*ta\, n. pl. [NL., fr. Gr. di- = di`s- twice + ? an embryo.] (Zo["o]l.) An order of worms parasitic in cephalopods. They are remarkable for the extreme simplicity of their structure. The embryo exists in two forms.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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