- gen•tian[[t]ˈdʒɛn ʃən[/t]] n.1) pln any plant of the gentian family, esp. the genus Gentiana, having usu. blue but sometimes yellow, white, or red flowers2) pln the root of a European species of gentian, G. lutea, used as a tonic•Etymology: 1350–1400; ME < L gentiāna
From formal English to slang. 2014.