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The Collaborative International Dictionary
Latency

Latency \La"ten*cy\, n. [See Latent.]

  1. The state or quality of being latent.

    To simplify the discussion, I shall distinguish three degrees of this latency.
    --Sir W. Hamilton.

  2. The time between a stimulus the appearance of the response; the time between any causal action and the first appearance of the effect. Called also latent period.

  3. Hence: (Med.) The time between exposure to a carcinogen or other disease-causing agent and the appearance of the consequent disease.

Douglas Harper's Etymology Dictionary
latency

1630s, "condition of being concealed," from latent + -cy. Meaning "delay between stimulus and response" is from 1882; computer sense (latency time) is from 1954.

Wiktionary
latency

n. 1 The state of being latent. 2 (context electronics English) A delay, a period between the initiation of something and the occurrence. 3 (context medicine English) The delay between a stimulus and the response it triggers in an organism. 4 A stage in Sigmund Freud's psychoanalytic theory of the psychosexual development of children where children become asexual until their sexual desires come back at puberty.

WordNet
latency
  1. n. (computer science) the time it takes for a specific block of data on a data track to rotate around to the read/write head [syn: rotational latency]

  2. the time that elapses between a stimulus and the response to it [syn: reaction time, response time, latent period]

  3. the state of being not yet evident or active

Wikipedia
Latency (engineering)

Latency is a time interval between the stimulation and response, or, from a more general point of view, a time delay between the cause and the effect of some physical change in the system being observed. Latency is physically a consequence of the limited velocity with which any physical interaction can propagate. This velocity is always lower than or equal to the speed of light. Therefore, every physical system that has spatial dimensions different from zero will experience some sort of latency, regardless of the nature of stimulation that it has been exposed to.

The precise definition of latency depends on the system being observed and the nature of stimulation. In communications, the lower limit of latency is determined by the medium being used for communications. In reliable two-way communication systems, latency limits the maximum rate that information can be transmitted, as there is often a limit on the amount of information that is "in-flight" at any one moment. In the field of human–machine interaction, perceptible latency has a strong effect on user satisfaction and usability.

Latency

Latency or latent may refer to:

Latency (audio)

Latency refers to a short period of delay (usually measured in milliseconds) between when an audio signal enters and when it emerges from a system. Potential contributors to latency in an audio system include analog-to-digital conversion, buffering, digital signal processing, transmission time, digital-to-analog conversion and the speed of sound in air.

Latency (customer)

Latency in the retail sense is defined as the time between two customer events, such as a first and second purchase.

For example, if Sam buys a pair of casual shoes on July 1, 2012, and then returns to buy dress shoes on August 1, 2012, then his latency can be calculated as 32 days (calculation).

Not all customer events need be purchase related. One may calculate latency between visits to a website, responses in a phone or direct mail campaign, etc.

An example of latency between purchases may be seen in the graph of sample data here.

Usage examples of "latency".

That waywardness which was a legitimate inheritance from generations of wilful forebears, impatient of all those restraints which a fixed environment imposes upon the individual, an impatience which had always been hers though it slumbered in unsuspected latency, asserted itself of a sudden, possessed her wholly, and warmed, her being like forbidden wine.

Instantaneously the Asiatic disappeared, thrust back into its habitual latency within the prison of European: Prince Victor was as he had been, as always to the world, cool, composed, and crafty, master, never creature, of his emotions.

I think that outside the House of God even in a cemetary there is no result just process and that here at last, with my love holding me, each day might be filled with all things and all colors and the eternal repetition of all colorful things renewed, and I feel that it just might be that in the flow of time the layers of bitterness might begin to peel away, until bitterness itself had become but a faint etching on a glass wall, layers of etched glass walls leading down a life toward a latency, a summer-game, a summer of fun, and as I struggle to rest the layers of bitterness are beginning to peel off, are peeling off, leaving me homing upriver toward innocence and nakedness and rest, as in the time before the House of God with Berry thank God for Berry and except for Berry where would I be for without her I could never learn to love as once I did love and will love and love.

Conversations carried out via a packet-switched network in real time, not limited by the speed of light, but bound together by a common reference frame and the latency between network hops.

I figure the singularity stays close to home in most cases, because bandwidth and latency time put anyone who leaves at a profound disadvantage.

The singularity stays close to home in most cases, because bandwidth and latency time put anyone who leaves at a profound disadvantage.

If we are carriers, will there be enough latency for a full church wedding?

A curious latency stirred in her consciousness that was not yet an idea.

The Internet Weather Report measures Internet performance, latency periods and downtime based on a sample of 4000 domains.

I gathered that she might be trying to understand, and cope with, unusual things which had occurred in her body, perhaps for the first time, things which, even in their incipience, even in the first and most inchoate forms, had profoundly stirred her, things which had perhaps hinted at profound latencies of scarcely suspected feelings, and had, perhaps to her dismay or terror, suggested to her what might be done to her, what she could, if a man wished, be made to feel.

In other words it is the negative quality of passiveness either in recoverable latency or insipient latescence.

They don't go interstellar because they want to stay near the core where the bandwidth is high and latency is low, and sooner or later, competition for resources hatches a new level of metacompetition that obsoletes them.

Conversations carried out via a packet-switched network in real time, not limited by the speed of light, but bound together by a common reference frame and the latency between network hops.

Nor can I tell what the next few days in the convicts' sickbay will show me: the prodromi are such that I should be clear in my mind - only too clear alas - if it were not for this period of latency, contrary to all my authorities from the ancients until today.