Share this entry
cephalon Line breaks: ceph|alon
Pronunciation: /ˈsɛfəlɒn/

Definition of cephalon in English:


(In some arthropods, especially trilobites) the region of the head, composed of fused segments.
Example sentences
  • This problem is reflected in the ongoing uncertainty about the number of biramous appendages in the trilobite cephalon.
  • This specimen cannot be specifically identified because it lacks the cephalon and first thoracic segment.
  • Members of the Agnostina have only two segments between the cephalon and pygidium, and never have cephalic sutures.


Late 19th century: from Greek kephalē 'head'.

Definition of cephalon in:
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.

Subscribe to remove adverts and access premium resources