latency Meaning, Definition & Usage

noun (computer science) the time it takes for a specific block of data on a data track to rotate around to the read/write head
rotational latency.
noun the time that elapses between a stimulus and the response to it
reaction time; latent period; response time.
noun the state of being not yet evident or active

See Latent.

The state or quality of being latent.
To simplify the discussion, I shall distinguish three degrees of this latency. Sir W. Hamilton.