Unc`tu*os"i*ty (?; 135), n. [Cf. F. onctuosité.] Quality or state of
being unctuous. Sir T. Browne.
Unc"tu*ous (?; 135), a. [F. onctueux, LL. unctuosus, fr. L. unctus
anointment, fr. ungere, unctum, to anoint. See Unguent.] 1. Of the
nature or quality of an unguent or ointment; fatty; oily; greasy. "The
unctuous cheese." Longfellow.