D defs.my
Entry 2 senses Webster, 1913

Senna

/sĕn'-ə/ · Sen·na · IPA /ˈsɛnə/
01 n. The leaves of several leguminous plants of the genus Cassia. (Cassia acutifolia, Cassia angustifolia, etc.). They constitute a valuable but…
  1. 1.
    The leaves of several leguminous plants of the genus Cassia. (Cassia acutifolia, Cassia angustifolia, etc.). They constitute a valuable but nauseous cathartic medicine.(Med.)
  2. 2.
    The plants themselves, native to the East, but now cultivated largely in the south of Europe and in the West Indies.(Bot.)
Phrases & compounds
Bladder senna — See under Bladder.
Wild senna — the Cassia Marilandica, growing in the United States, the leaves of which are used medicinally, like those of the officinal senna.