ˈeksəkəm noun
Etymology: New Latin, from Latin, a kind of centaury, from Gaulish
1. capitalized : a genus of tropical Asiatic and African plants (family Gentianaceae) including one species ( E. affine ) of herbaceous biennials with bluish to dark lavender flowers that are often cultivated in the greenhouse
2. -s : any plant of the genus Exacum