digitalin

1. A white crystalline glycoside, C₃₆H₅₆O₁₄, that is obtained from the seeds of the common foxglove.
2. One of several mixtures of digitalis glycosides that are extracted from the leaves or seeds of the common foxglove.

[DIGITAL(IS) + -IN.]

A mixture of glycosides obtained from the leaves and seeds of the common foxglove and used as a cardiotonic.

A mixture of digitalis glycosides extracted from the seeds of Digitalis purpurea.

The noun has one meaning:

Meaning #1: a powerful cardiac stimulant obtained from foxglove
  Synonyms: digitalis, digitalis glycoside