DEFINITION of 'Warranty'. A type of guarantee that a manufacturer or similar party makes regarding the condition of its product. It also refers to the terms and situations in which repairs or exchanges will be made in the event that the product does not function as originally described or intended. Next Up.
RSA is an algorithm used by modern computers to encrypt and decrypt messages. It is an asymmetric cryptographic algorithm.
CAA is defined by a type of protein deposit in the wall of blood vessels in the brain. CAA is actually a common process in aging and usually harmless. In some people with severe CAA, however, the protein deposits cause the blood vessel walls to crack, in which case blood can leak out and damage the brain.