Curari is a deadly neurotoxin that has been used by indigenous South American tribes for hunting and in warfare. It is extracted from the bark and stems of certain plants. While "curari" is the commonly used term for this toxin, there are other words that can be used to describe it. Synonyms for curari include "arrow poison," "woorari," and "urari." These words are often used interchangeably to refer to the same toxin, but they may have slightly different connotations in different regions or cultures. Regardless of the term used, curari remains a potent and dangerous poison that has both fascinated and terrified people for centuries.