ogee

[oh-jee, oh-jee] /oʊˈdʒi, ˈoʊ dʒi/
noun
1.
a double curve, resembling the letter S, formed by the union of a concave and a convex line.
2.
Also called gula. Architecture. a molding with such a curve for a profile; cyma.
Abbreviation: O.G., o.g.
Origin
1275-1325; Middle English ogeus, oggez (plural), variant (by assimilation of f) of oggifs, presumed singular oggif diagonal rib of a vault < Anglo-French, Old French ogive ogive
Examples from the web for ogee
  • The uncontrolled saddle spillway is a gravity ogee weir located at the right abutment.
  • Two uncontrolled ogee crest spillways are concrete lined and located on each abutment.
  • Washers may be cast iron ogee or malleable iron castings, or they may be cut from medium steel or wrought-iron plate.
  • Washers shall be ogee gray iron castings or malleable iron castings unless washers cut from medium steel or wrought iron plate.
British Dictionary definitions for ogee

ogee

/ˈəʊdʒiː/
noun (architect)
1.
Also called talon. a moulding having a cross section in the form of a letter S
2.
short for ogee arch
Word Origin
C15: probably variant of ogive
Word Origin and History for ogee
n.

"S-shaped molding," 1670s, from French ogive "diagonal rib of a vault," earlier augive, of unknown origin. Related: ogival.