lunette

/luːˈnɛt/
noun
  1. A crescent-shaped or semicircular space or opening, especially in architecture or a fortification.
    • The cathedral's lunette above the door was filled with a beautiful stained-glass window.
    • The architect designed a lunette in the wall to let in more light.
    • The fort's lunette provided a defensive position for the soldiers.
  2. A type of eyeglass or lens that is round and without a frame, often part of a pince-nez or similar eyewear.
    • He wore a pair of antique lunettes with a gold bridge.
    • She found a pair of vintage lunettes at the flea market.
    • The professor adjusted his lunettes before reading the document.
Synonyms
What does "lunette" mean? | whatsthatwordmean | whatsthatwordmean