Os"cu*la*to*ry (?), a. 1. Of or pertaining to kissing; kissing. "The osculatory ceremony." Thackeray.

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.

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.

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