osculation

noun (n)

1. (mathematics) a contact of two curves (or two surfaces) at which they have a common tangent (noun.state)

   Sumber: wordnet30

2. the act of caressing with the lips (or an instance thereof) (noun.act)

   Sinonim: buss, kiss

   Sumber: wordnet30

3. The act of kissing; a kiss. (noun)

   Sumber: webster1913