doyen /doiˈən or dwä-yãˈ/ or (fem) doyenne /doi-enˈ or dwä-yenˈ/

1. The most senior and most respected member (of an academy, diplomatic corps, class, profession, etc)
2. A dean

• heliographers
• heliographic
• heliographical
• heliographically
• heliographies
• heliographing
• heliographs
• heliography
• heliogravure
• heliogravures
• heliolater
• heliolaters
• heliolatries
• heliolatrous
• heliolatry
• heliologies
• heliology
• heliometer
• heliometers
• heliometric
• heliometrical
• heliopause
• heliopauses
• heliophilous
• heliophobic