cephalochordate

== English == === Etymology === From taxonomic name Cephalochordata, by surface analysis, cephalo- +‎ chordate. === Noun === cephalochordate (plural cephalochordates) Any of the primitive fishlike creatures, of the subphylum Cephalochordata, including the lancelets, that lack a true spine but have a notochord which, in the case of cephalochordates, reaches into the head, contrary to the Urochordata === Adjective === cephalochordate (not comparable) Of or pertaining to these creatures.