Interosculant :: Interosculant (a.) Uniting two groups; -- said of certain genera which connect family groups, or of species that connect genera. See Osculant..
Interosculate :: Interosculate (v. i. & t.) To kiss together to touch. See Osculate.
Interosculate :: Interosculate (v. i. & t.) To have the character of, or to lie between, two distinct groups..