osˈculāte transitive verb

1. To kiss
2. To have three or more coincident points in common with (mathematics)

1. To be in close contact
2. To form a connecting link

osculāˈtion noun

osˈculatory adjective

Of or relating to kissing or osculation

A carved tablet kissed by the priest and (now rarely) by the people at mass

osˈcule noun

1. A little mouth
2. A small mouthlike aperture

osˈculum noun (pl osˈcula)

1. An exhalant aperture in a sponge
2. A sucker on a tapeworm's head

osculating orbit noun (astronomy)

An ellipse whose elements represent the actual position and velocity of a comet at a given moment (the epoch of osculation)