The Collaborative International Dictionary of English v.0.48:

Osculatory \Os"cu*la*to*ry\, a.
   1. Of or pertaining to kissing; kissing. "The osculatory
      ceremony." --Thackeray.
      [1913 Webster]

   2. (Geom.) Pertaining to, or having the properties of, an
      osculatrix; capable of osculation; as, a circle may be
      osculatory with a curve, at a given point.
      [1913 Webster]

   Osculatory circle. (Geom.) See Osculating circle of a
      curve, under Circle.

   Osculatory plane (to a curve of double curvature), a plane
      which passes through three successive points of the curve.


   Osculatory sphere (to a line of double curvature), a sphere
      passing through four consecutive points of the curve.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Osculatory \Os"cu*la*to*ry\, n. [LL. osculatorium. See
   Osculate.] (R. C. Ch.)
   Same as Pax, 2.
   [1913 Webster]