actinomere
noun
ac·tin·o·mere
ak-ˈti-nə-ˌmir
plural -s
: one of the radial segments composing the body of a radiate animal
actinomeric adjective
ak-¦ti-nə-¦mer-ik
-¦me-rik
Word History
Etymology
probably from French actinomère, from actin- + -mère -mere
First Known Use
1861, in the meaning defined above