a terrorist organization in Colombia formed in 1997 as an umbrella for local and regional paramilitary groups; is financed by earnings from narcotics and serves to protect the economic interests of its members
"the AUC conducted over 800 assassinations in one year"
Initialism of area under curve (the area under the curve in a plot of concentration of drug in blood plasma against time).
According to the Roman era, which reckons the number of years passed from the foundation of the city of Rome by Romulus, now usually taken as 753 bc.