The Collaborative International Dictionary
Interosculate
Interosculate \In`ter*os"cu*late\, v. i. & t.
To kiss together to touch. See Osculate.
(Biol.) To have the character of, or to lie between, two distinct groups.
Wiktionary
interosculate
vb. 1 To kiss together; to touch. 2 (context biology English) To have the character of, or to lie between, two distinct groups.