echo check

American  

[e-koh chek] / ˈɛ koʊ ˌtʃɛk /

noun

1. a quality check and error-control technique for data transferred over a computer network or other communications link, in which the data received is stored and also transmitted back to its point of origin, where it is compared with the original data.

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Etymology

Origin of echo check

First recorded in 1945–50

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