What is the meaning of Digitalis?

Any plant of the genus Digitalis (herbaceous plants of the Plantaginaceae family, including the foxglove, Digitalis purpurea).

A medical extract of Digitalis purpurea prescribed for heart failure etc.

digitalis (medical extract)

digitalis: a medical extract of Digitalis purpurea prescribed for heart failure etc.

Of or belonging to the finger

Source: wiktionary.org