Corroval

• (n.) A dark brown substance of vegetable origin, allied to curare, and used by the natives of New Granada as an arrow poison.
Found on http://thinkexist.com/dictionary/meaning/corroval/

Corroval

Cor·ro'val noun A dark brown substance of vegetable origin, allied to curare, and used by the natives of New Granada as an arrow poison.
Found on http://www.encyclo.co.uk/webster/C/165
No exact match found