n. S形线

[ noun ]
a molding that (in section) has the shape of an S with the convex part above and the concave part below
<noun.artifact>

Ogee \O*gee"\, n. [F. ogive, augive, LL. augiva, of uncertain
origin; cf.LL. ogis a support, prop. L. augere to increase,
strengthen, Sp. auge highest point of power or fortune,
apogee, Ar. auj, an astronomical term.]
1. (Arch.) A molding, the section of which is the form of the
letter S, with the convex part above; cyma reversa. See
Illust. under {Cyma}.

2. Hence, any similar figure used for any purpose.

{Ogee arch} (Arch.), a pointed arch, each of the sides of
which has the curve of an ogee, that is, has a reversed
curve near the apex.

Talon \Tal"on\, n. [F., heel, spur, LL. talo, fr. L. talus the
ankle, heel.]
1. The claw of a predaceous bird or animal, especially the
claw of a bird of prey. --Bacon.

2. (Zo["o]l.) One of certain small prominences on the hind
part of the face of an elephant's tooth.

3. (Arch.) A kind of molding, concave at the bottom and
convex at the top; -- usually called an {ogee}.

Note: When the concave part is at the top, it is called an
{inverted talon}.

4. The shoulder of the bolt of a lock on which the key acts
to shoot the bolt. --Knight.