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
have at least three points in common with; "one curve osculates the other"; "these two surfaces osculate" be intermediate between two taxonomic groups; "These species osculate
touch with the lips or press the lips (against someone's mouth or other body part) as an expression of love, greeting, etc ; "The newly married couple kissed"; "She kissed her grandfather on the forehead when she entered the room"