ste·roid 
/ˈstɛˌroɪd/ noun
plural ste·roids /ˈstɛˌroɪd/ noun [count] 1 : a natural substance that is produced in the body 2 : anabolic steroid
▪ a steroid user/abuser ▪ He was accused of taking/using steroids.
▪ a steroid user/abuser ▪ He was accused of taking/using steroids.
on steroids 1 : using anabolic steroids
▪ There were many rumors that she was on steroids. 2 US, informal + humorous : very large or impressive
▪ a cookie on steroids [=a very large cookie]
▪ There were many rumors that she was on steroids.
▪ a cookie on steroids [=a very large cookie]
