Definition of "superbine"

Gloriosa superba: spectacularly beautiful climbing lily. Roots, stalks, leaves contain an acrid narcotic, superbine, as well as colchicine and choline. Three grains of colchicine are fatal. Hawaii.

1964, Ian Fleming, You Only Live Twice

Other publications report the presence of a toxic compound, superbine, which is experimentally lethal to a cat in a dose as small as 0.01 g (0.00036 oz).

1996, David W. Nellis, Poisonous Plants and Animals of Florida and the Caribbean, Pineapple Press Inc, page 207