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Medical Definition of Haemichordata
1. A phylum comprised of soft-bodied, bilaterally symmetrical wormlike marine animals with gill-slits to the pharynx and a conical proboscis; a ciliated larval stage resembles that of echinoderms. Synonym: Haemichorda. Origin: hemi-+ Mod. L. Chordata, having a notochord, fr. G. Chorde, string (05 Mar 2000)
Lexicographical Neighbors of Haemichordata
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