Thesaurus: half life
the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)
Related headwords
timedefinitionatomsdefinitiondisintegratedefinitionfalldefinitioninitialdefinitionparticulardefinitionradioactivedefinitionrequireddefinitionsomethingdefinitionsubstancedefinitionvaluedefinitionhalf bootfamilyhalf brotherfamilyhalf crownfamilyhalf dollarfamilyhalf doorfamilyhalf dozenfamilyhalf eaglefamilyhalf gainerfamilyhalf hatchetfamilyhalf hitchfamilyhalf maskfamilyhalf milefamilyhalf nelsonfamilyhalf notefamilyhalf pagefamilyhalf poundfamilyhalf restfamily
Definitions
- n. the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)