dex       
noun [ U ] uk/deks/ us/deks/
 德太德林(又称“迪西卷”,dexedrine 的缩写,一种用于治疗多动症的药物,被有的人为了获得快感而非法服用)
abbreviation for dexedrine: a drug used in the treatment of ADHD that is sometimes taken illegally for pleasure
  I did some dex and didn't sleep all night. 我吃了些迪西卷,整夜无法入睡。 
 I knew nothing of “speed”, “dex”, “ketamine”, or “amphetamine”. 我对“快速丸”、“迪西卷”、“克他命”或“安非他命”等一无所知。 
 - More examples
 - He did some dex and had a very strange experience.
 - What happens if non-ADD people take dex?
 - Do they prescribe dex in the UK?