ogee

plural ogees

1. architectureA double curve in the shape of an elongated S; an object of that shape.

   In front of the leading splasher the frame was given what is called an ogee bend outwards, [...].

   1959 June, A. G. Dunbar, “The "Cardeans" of the Caledonian”, in Trains Illustrated, page 309

   2 more examples

   At the centre of this façade of one story is a porch of two stories with a tall attic and a gable of ogee outline flanked by finials.

   1905, Charles Herbert Moore, “Chapter 13”, in Character of Renaissance Architecture

   There is no pronounced ogee arch anywhere, though there is a suspicion of one where the open trefoils of the gables rest upon the containing arches. The tracery too of all the circles is geometrical, i.e., composed of simple curves; there is no flowing or ogee tracery with compound curves.

   1910, Francis Bond, “Chapter 3”, in Wood Carvings in English Churches

   Synonyms: cyma

2. architectureA pointed arch made from two ogees.

   Synonyms: ogive

3. mathematicsAn inflection point.
4. aesthetic facial surgeryThe malar or cheekbone prominence transitioning into the mid-cheek hollow.
5. distillationThe bubble-shaped chamber of a pot still that connects the swan neck to the pot and allows distillate to expand, condense, and fall back into the pot.