Powerful need or instinct that motivates behaviour, e.g. hunger or sex

Let's find possible answers to "Powerful need or instinct that motivates behaviour, e.g. hunger or sex" crossword clue. First of all, we will look for a few extra hints for this entry: Powerful need or instinct that motivates behaviour, e.g. hunger or sex. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.