eu·pat·rid 
(y-pătrĭd, ypə-trĭd)
(y-pătrĭd, ypə-trĭd)n. pl. eu·pat·ri·dae (-rĭ-dē′) or eu·pat·rids
A member of the hereditary aristocracy of ancient Athens.
[Greek eupatridēs : eu-, eu- + patēr, patr-, father; see pəter- in the Appendix of Indo-European roots + -idēs, patronymic suff.]
eu·patrid adj.
- bioastronautics
- bioavailability
- bioavailable
- biobank
- biobased
- biobehavioral
- bio-bibliography
- biobibliography
- biocatalyst
- biocatalytic
- biocenology
- biocenosis
- biochem
- biochemical
- biochemically
- biochemical oxygen demand
- biochemist
- biochemistry
- biochip
- biocidal
- biocide
- bioclimatic
- bioclimatology
- biocoenosis
- biocompatibility