Dust refers to any small amount of coins or tokens that have such a low value that they can’t be processed in blockchain transactions.
For example, Bitcoin dust is a small amount of Bitcoin in a particular wallet or address whose value is even lower than the fee required to make a transfer. This makes it impossible to process a transaction. To avoid losing dust in the network, it’s important to check the minimum amount required for crypto deposits and withdrawals.
Sometimes, the term dust refers to small fractions of cryptocurrencies that are left from trades. Most exchanges have a minimum trade requirement, meaning that it may not be possible to trade small amounts of cryptocurrency remaining on an exchange account.