lengilan noun English. A relatively small regrowth softwood used for making offering platforms and whose bark is boiled for medicine. Example sentence: Subanen. Kig lengilan, ginis gayu letin, maumuk, muka' bulung, sa' begu pegbata'. English. The lengilan tree is a kind of regrowth softwood and which is a medicine for women who've just given birth. Generic. ayu; bulung