the aromatic inner bark of any of several East Indian trees belonging to the genus Cinnamonum, of the laurel family, esp. the bark of C. zeylanicumused as a spice, or that of C. loureiriiused in medicine as a cordial and carminative.
a tree yielding such bark.
any allied or similar tree.
a common culinary spice of dried rolled strips of this bark, often made into a powder.