Definition of Hemichordata in English:

Share this entry

Hemichordata

Pronunciation: /ˌheməkôrˈdādä/
Zoology
A small phylum of marine invertebrates that comprises the acorn worms.
Example sentences
  • The superphylum Deuterostomia contains the diverse phyla Chordata and Echinodermata and the minor phyla Hemichordata and Urochordata.
  • The superphyla Deuterostomia (e.g., Chordata, Echinodermata, Hemichordata) and Protostomia each appear to have evolved from an ancestor with a coelomic body cavity.
  • Metamorphosis in the acorn worms (Hemichordata, Enteropneusta) includes retention of the entire larval body, which sheds feeding and propulsory cilia and undergoes definitive shape changes.

For editors and proofreaders

Syllabification: Hem·i·chor·da·ta

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.