Self-expandable metallic stent, a medical tube to hold open the gastrointestinal tract
Traditionally, Mañjushrīmītra (Tib. jam dpal bshes gnyen) is said to have classified all the Dzogchen teachings transmitted by his teacher Prahevajra (Tib. Garab Dorje) into three series: Semde (Wylie: sems sde), Longde (Wylie: klong sde), and Menngagde.