Cephalochordata
noun plural
Ceph·a·lo·chor·da·ta
-ˌkȯr-ˈdät-ə 
-ˈdāt-ə
-ˈdāt-ə
: a subphylum of the phylum Chordata comprising the lancelets and characterized by extension of the notochord to the anterior as well as to the posterior end of the body
Cite this Entry
“Cephalochordata.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Cephalochordata. Accessed 4 Nov. 2025.
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