Before revision: The American Society of Pharmacognosy defines pharmacognosy as "the study of the physical, chemical, biochemical, and biological properties of drugs, drug substances, or potential drugs or drug substances of natural origin as well as the search for new drugs from natural sources".The American Society of Pharmacognosy Description The word "pharmacognosy" is derived from two Greek words: pharmakon (drug), and gnosis (knowledge) or the Latin verb cognosco ( con , 'with', and gnōscō , 'know'; itself a cognate of the Greek verb , gi(g)nósko , meaning 'I know, perceive'), meaning 'to conceptualize' or 'to recognize'.
After revision: The American Society of Pharmacognosy defines pharmacognosy as "the study of the physical, chemical, biochemical, and biological properties of drugs, drug substances, or potential drugs or drug substances of natural origin as well as the search for new drugs from natural sources".The American Society of Pharmacognosy Description The word "pharmacognosy" is derived from two Greek words: , (drug), and gnosis (knowledge) or the Latin verb cognosco ( , 'with', and , 'know'; itself a cognate of the Greek verb , , meaning 'I know, perceive'), meaning 'to conceptualize' or 'to recognize'.