The Collaborative International Dictionary of English v.0.48:

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.]
   [1913 Webster]
   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.
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   2. Hence, any similar figure used for any purpose.
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   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.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

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.
      [1913 Webster]

   2. (Zool.) One of certain small prominences on the hind part
      of the face of an elephant's tooth.
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   3. (Arch.) A kind of molding, concave at the bottom and
      convex at the top; -- usually called an ogee.
      [1913 Webster]

   Note: When the concave part is at the top, it is called an
         inverted talon.
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   4. The shoulder of the bolt of a lock on which the key acts
      to shoot the bolt. --Knight.
      [1913 Webster] Talook

WordNet (r) 3.0 (2006):

ogee
    n 1: a molding that (in section) has the shape of an S with the
         convex part above and the concave part below [syn: ogee,
         cyma reversa]