Mean Lifetime
type: QuantityKind
description: The "Mean Lifetime" is the average length of time that an element remains in the set of discrete elements in a decaying quantity, $N(t)$.
applicable unit: DAY
applicable unit: HR
applicable unit: MIN
applicable unit: SEC
applicable unit: YR
has dimension vector: A0E0L0I0M0H0T1D0
informative reference: https://en.wikipedia.org/wiki/Exponential_decay
iso normative reference: http://www.iso.org/iso/catalogue_detail
latex definition: $\tau = \frac{1}{\lambda}$, where $\lambda$ is the decay constant.
latex symbol: $\tau$
specialization of: Time
wikidata match: Q1758559
comment: Applicable units are those of quantitykind:MeanLifetime
broader: Time