latency
C1Technical/Formal
Definition
Meaning
The state of existing but not yet being active, visible, or developed; a delay or period of waiting.
In computing and networking, the time delay between a command/request being issued and a response/action being observed. In psychology, a period of apparent inactivity between a stimulus and response. In medicine, a period where a disease/dormant condition is present without symptoms.
Linguistics
Semantic Notes
The term often implies a measurable, sometimes undesirable, delay. In tech contexts, it's a precise quantitative measurement (e.g., in milliseconds). In non-tech contexts, it often carries a nuance of potential that is temporarily suppressed or hidden.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning. Both varieties use it primarily in technical fields (computing, medicine, psychology). Spelling is identical.
Connotations
Neutral to slightly negative (referring to unwanted delay) in both varieties.
Frequency
Equally common in technical registers in both BrE and AmE. Rare in general everyday conversation.
Vocabulary
Collocations
Grammar
Valency Patterns
latency of [NOUN]latency in [SYSTEM/PROCESS]latency between [EVENT A] and [EVENT B]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Refers to delays in supply chains, decision-making, or market response (e.g., 'The latency in board approval is slowing the project.').
Academic
Used in computer science, network engineering, psychology (Freudian latency stage), and medicine (viral latency).
Everyday
Very rare. Might be used loosely for any annoying delay (e.g., 'There's a bit of a latency when I press the button.').
Technical
The primary domain. Precise measurement of time delay in data transmission, signal processing, or system response.
Examples
By Part of Speech
verb
British English
- N/A
American English
- N/A
adverb
British English
- N/A
American English
- N/A
adjective
British English
- N/A (adjective form is 'latent')
American English
- N/A (adjective form is 'latent')
Examples
By CEFR Level
- (Too advanced for A2)
- Online gamers need low latency for a better experience.
- There was a short latency between the flash of lightning and the thunder.
- The engineers worked to reduce the network latency to under 20 milliseconds.
- The virus can remain in a state of latency for years before symptoms appear.
- The study examined the cognitive latency in decision-making under stress.
- Advanced techniques like prefetching are used to mask memory access latency in processors.
Learning
Memory Aids
Mnemonic
Think of a LATENT (hidden) possibility becoming active. LATENCY is the state of being LATENT, or the TIME (ency) it takes for something latent to become active.
Conceptual Metaphor
DELAY IS DISTANCE (e.g., 'high latency' is metaphorically 'a long way for the signal to travel'). POTENTIAL IS A SEED (latency is the seed's dormant period before germination).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'латентность' in all contexts. In computing, 'задержка' or 'пинг' is more common for 'latency'. 'Latency period' in medicine/psychology is 'латентный период'.
Common Mistakes
- Using 'latency' to mean 'latest thing' (confusion with 'latest'). Using it as a synonym for 'speed' rather than 'delay'. Pronouncing it /ləˈtɛnsi/ (incorrect).
Practice
Quiz
In which of these fields is the term 'latency' LEAST commonly used in its technical sense?
FAQ
Frequently Asked Questions
In informal tech contexts, they are often synonymous. However, 'latency' is the precise technical term for the delay itself, while 'lag' often describes the observable, negative effect of high latency (e.g., jerky video).
High latency. The ideal is 'low latency' or 'ultra-low latency,' meaning minimal delay.
No. The adjective form is 'latent' (e.g., 'latent heat,' 'latent talent'). 'Latency' is exclusively a noun.
Bandwidth is about capacity (how much data per second), like the width of a pipe. Latency is about delay (how long for one piece of data to travel), like the speed of water in the pipe. A big pipe (high bandwidth) can still have slow water (high latency).