NAK

(redirected from Negative Acknowledgment)
Also found in: Financial, Acronyms.

NAK

[nak or ‚en‚ā′kā]
(computer science)

NAK

NAK

(Negative AcKnowledgement) A communications code used to indicate that a message was received in error or that the endpoint is not ready to accept data or simply a "no" response to a query. Contrast with ACK.
Full browser ?