What is an implied warranty of merchantability?

An implied warranty of merchantability is an implied warranty on a product for sale that essentially guarantees through implication, that a product will reasonably conform to a buyer's standards and that the product is suitable for sale. In other words, unless the seller of the product explicitly states otherwise by using a phrase such as "as is" or "defective" in describing the product, the buyer has the reasonable right to expect that the item he is buying will conform to his basic expectations and will have no flaws that are not immediately discernible or part of the nature of the item.