Os"cu*late (?), v. t. [imp. & p. p. Osculated (?); p. pr. & vb. n. Osculating.] [L. osculatus, p. p. of osculari to kiss, fr. osculum a little mouth, a kiss, dim. of os mouth. See Oral, and cf. Oscillate.]

1. To kiss.

2. (Geom.) To touch closely, so as to have a common curvature at the point of contact. See Osculation, 2.

Os"cu*late, v. i. 1. To kiss one another; to kiss.

2. (Geom.) To touch closely. See Osculation, 2.

3. (Biol.) To have characters in common with two genera or families, so as to form a connecting link between them; to interosculate. See Osculant.

• to kiss someone or something
  
• (mathematics) to have at least three points coincident with something
  
• to make contact