Message Digest

The result of applying a hash function to a message. Also known as a “hash value” or “hash output”.
SOURCE: SP 800-107

A digital signature that uniquely identifies data and has the property that changing a single bit in the data will cause a completely different message digest to be generated.
SOURCE: SP 800-92

A cryptographic checksum, typically generated for a file that can be used to detect changes to the file. Synonymous with hash value/result.
SOURCE: CNSSI-4009