radioactive constant
Physics
noun
A number representing the speed of radioactive decay, equal to the probability of a nucleus decaying in unit time; symbol λ.
- The relation between λ and the half-life τ is τ = ln 2/λ..
Origin
Early 20th century; earliest use found in Ernest Rutherford (1871–1937), physicist.
- nointed
- nointer
- nointing
- noir
- noirish
- no-iron
- noise
- noise and number index
- noise bar
- noise barrier
- noise cancelation
- noise cancellation
- noise check
- noise contour
- noisecore
- noise factor
- noise figure
- noise filter
- noise footprint
- noiseful
- noise gate
- noise gating
- noise generation
- noise generator
- noiseless