–verb (used without object)
1. to come into close contact or union.
2. Geometry. (of a curve) to touch another curve or another part of the same curve so as to have the same tangent and curvature at the point of contact.
–verb (used with object)
3. to bring into close contact or union.
4. Geometry. (of a curve) to touch (another curve or another part of the same curve) in osculation.
5. to kiss.
[Origin: 1650–60; < L ōsculātus (ptp. of ōsculārī to kiss), equiv. to ōscul(um) kiss, lit., little mouth (see osculum) + -ātus -ate1]
A little sumpin' sumpin' for your Valentine's Day cards!!!