perihelion /per-i-hēˈli-ən/

1. The point of the orbit of a planet or a comet at which it is nearest to the sun, opp to aphelion
2. Culmination (figurative)

• adunc
• aduncate
• aduncated
• aduncities
• aduncity
• aduncous
• ad unguem
• ad unum omnes
• adust
• adusted
• adusting
• adusts
• adv.
• ad val.
• ad valorem
• advance
• advanced
• advanced gas-cooled reactor
• advanced guard
• Advanced Higher
• advance directive
• advance directives
• advanced level
• Advanced level
• advanced levels