1. spice made from the bark of an east ındian tree. tasting like cinnamon; reddish brown. cinnamoncinna*mon , n. [heb. qinnāmōn; cf. gr. , , cinnamomum, cinnamon. the heb. word itself seems to have been borrowed from some other language; cf. malay kājū mānis sweet wood.] (a) the inner bark of the shoots of cinnamomum zeylanicum, a tree growing in ceylon. it is aromatic, of a moderately pungent taste, and is one of the best cordial, carminative, and restorative spices. (b) cassia.cinnamon stone (min.), a variety of garnet, of a cinnamon or hyacinth red color, sometimes used in jewelry