|Origin:||daemon 'evil spirit', from Greek daimon|
an evil spirit or force:
He was speeding down the motorway as if pursued by a demon.
2 [usually plural]
something that makes you anxious and causes you problems:
She struggled with her husband's demons of addiction and alcoholism.
someone who is very good at something - often used humorously:
a demon cook
4 British EnglishDFD
alcoholic drink - often used humorously