Phrase guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
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No pronunciation record was provided for this word.
noun
A characteristic of an exponential function, represented by τ in the function
Definition source: English Wiktionary via Wiktextract
Topics: mathematics, sciences
Synonyms: none provided
Antonyms: none provided
noun
The time in which a physical system's response to a step-wise change in an external variable reaches approximately 63% of its final (asymptotic) value.
Definition source: English Wiktionary via Wiktextract
Topics: natural-sciences, physical-sciences, physics
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
For radioactivity: the decay constant.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
the ratio of the inductance of a circuit in henries to its resistance in ohms
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
Broader terms: ratio
noun
(electronics) the time required for the current or voltage in a circuit to rise or fall exponentially through approximately 63 per cent of its amplitude
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
Broader terms: time interval, interval
Narrower terms: relaxation time
History
No etymology was provided for this word.
Across languages
2 source translations are retained for this English entry.
