osculate
1. [ verb ] (mathematics) mathematics: have at least three points in common with
Examples:

"one curve osculates the other" "these two surfaces osculate"

Related terms: share mathematics
2. [ verb ] be intermediate between two taxonomic groups
Examples:

"These species osculate"

Related terms: be
3. [ verb ] touch with the lips or press the lips (against someone's mouth or other body part) as an expression of love, greeting, etc.
Synonyms: kiss buss
Examples:

"The newly married couple kissed" "She kissed her grandfather on the forehead when she entered the room"

Related terms: touch smack kiss caressing kisser
Similar spelling:   osculator
  oscillate
  osculation
  oscillator
  oscillatory
  oscillation
  oscillating