1. Someone who has an excessive desire for material gain and greediness for all kinds of wealth: Fay's husband was an avartist who was able to become a billionaire; however, since he couldn't take his wealth with him, his wife inherited his fortune.
2. A person who has an uncontrolled desire for almost anything; including, food, drink, money, or emotional gratifications: Glen is an avarist who likes to help people whenever he can because he always expects to receive praise for whatever he does for them.