1) Act of kissing 2) Close contact 3) Contact 4) The act of kissing 1) Buss 2) Contiguity 3) Kiss 4) Smooch 
• (n.) The contact of one curve with another, when the number of consecutive points of the latter through which the former passes suffices for the complete determination of the former curve. • (n.) The act of kissing; a kiss.
Os`cu·la'tion noun [ Latin osculatio a kissing: confer French osculation .] 1. The act of kissing; a kiss. 2. (Geom.) The contact of one curve with another, when the number of consecutive points of the latter through which the former passes suffices for the complet...
[n] - (mathematics) a contact of two curves (or two surfaces) at which they have a common tangent
osculation, osculatory 1. The act of kissing. 2. A kiss. 3. Close contact. 4. In mathematics, a contact, as between two curves or surfaces, at three or more common points.
noun (mathematics) a contact of two curves (or two surfaces) at which they have a common tangent
the act of kissing. · a kiss. · close contact. · the contact between two osculating curves or the like.
the act of kissing