NAK

From Fresh Dictionary

English

Abbreviation

NAK or sometimes nak

1. ((computing{{#if:|, {{{2}}}{{#if:|, {{{3}}}{{#if:|, {{{4}}}{{#if:|, {{{5}}}{{#if:|, {{{6}}}{{#if:|, {{{7}}}{{#if:|, {{{8}}}{{#if:|, {{{9}}}}}}}}}}}}}}}}}}})): A negative ACK; a response indicating that a message was not fully received, or that there was a problem with the message.