- any plant belonging to the genus Digitalis, of the figwort family, especially the common foxglove, D. purpurea.
- the dried leaves of the foxglove, Digitalis purpurea, used in medicine as a heart stimulant.
- any Eurasian scrophulariaceous plant of the genus Digitalis, such as the foxglove, having bell-shaped flowers and a basal rosette of leaves
- a drug prepared from the dried leaves or seeds of the foxglove: a mixture of glycosides used medicinally to treat heart failure and some abnormal heart rhythms
- any cardiac glycoside, whatever its origin
