- the act of kissing.
- a kiss.
- close contact.
- Geometry. the contact between two osculating curves or the like.
- Also called: tacnode maths a point at which two branches of a curve have a common tangent, each branch extending in both directions of the tangent
- rare the act or an instance of kissing
n.“kissing; a kiss,” 1650s, from Latin osculationem (nominative osculatio), noun of action from past participle stem of osculari (see osculate).