Webster’s Revised Unabridged Dictionary · 1913
Digitalis
Dig′i·ta′lis (dĭj′ĭ·tā′lĭs), n. [NL.: cf. F. digitale. So named (according to Linnæus) from its finger-shaped corolla.] 1. (Bot.) A genus of plants including the foxglove.
2. (Med.) The dried leaves of the purple foxglove (Digitalis purpurea), used in heart disease, disturbance of the circulation, etc.