noun
also sis·su ˈsi(ˌ)sü
( -s )
Etymology: Hindi sīso, from Sanskrit śiṁśapā
1. : any of several trees of the genus Dalbergia ; especially : an East Indian tree ( D. sissoo ) whose leaves are used as fodder
2. : the dark brown compact and durable timber of the sissoo tree used especially in shipbuilding and for making railroad ties