Definitions

from The Century Dictionary.

  • Having no notochord; invertebrate; belonging to the Achordata.
  • noun One of the Achordata.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective biology Not having a proto-spinal chord at any stage of development.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

a- +‎ chordate

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Examples

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