(1):
(a.) Kissing; hence, meeting; clinging.
(2):
(a.) Intermediate in character, or on the border, between two genera, groups, families, etc., of animals or plants, and partaking somewhat of the characters of each, thus forming a connecting link; interosculant; as, the genera by which two families approximate are called osculant genera.
(3):
(a.) Adhering closely; embracing; - applied to certain creeping animals, as caterpillars.