What is the meaning of Archiannelida?

(n.pl.) A group of Annelida remarkable for having no external segments or distinct ventral nerve ganglions.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). archiannelida. Retrieved September 26, 2026, from http://smartdefine.org/archiannelida/definitions/1975569
ChicagoWebster's. 2011. "archiannelida" http://smartdefine.org/archiannelida/definitions/1975569 (accessed September 26, 2026).
HarvardWebster's 2011, archiannelida, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/archiannelida/definitions/1975569>.
MLAWebster's. "archiannelida" 27 May 2011. Web. 26 September 2026. <http://smartdefine.org/archiannelida/definitions/1975569>
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