fenestella

• Отверстие овальной или круглой формы в куполе или своде, предназначенное для пропускания света.

A noun referring to an oval or circular opening in a dome or vault, designed to allow light to enter.

нестандартное множественное число

1. Architectural openingC2formalart

   A small oval or circular opening in a dome or vault, designed to allow light to enter.

   Окно в куполе

   • The fenestella in the ancient cathedral's dome cast a soft, circular beam of light onto the floor.
   • Architects often used a fenestella to illuminate the interior of a vaulted ceiling.
   • The restoration team carefully cleaned the fenestella to restore its original function.

   Синонимыapertureeyeoculusopening