osculate

To kiss.

To have three or more points coincident with.

To come together; contact.

To salute with a kiss; kiss.

In geometry, to have a higher contact with; touch as closely as possible.

To kiss one another; kiss.

In geometry, to have, as two loci, three or more coincident and successive points in common. See I., 2.

In natural history, to share the characters of another group.

To kiss.

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