half-life

WordNet-Online
Free dictionary and thesaurus of English. Definitions, synonyms, antonyms and more...
Hint: double-click any word to get it searched!

Definitions from WordNet

Noun half-life has 1 sense

half life, 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)
--₁ is a kind of time period, period of time, period

Definitions from the Web

Half life

Noun

The time required for a substance to reduce to half of its initial amount through radioactive decay.
A period of time in which the value, effectiveness, or influence of something decreases by half.

Example Sentences:

The half life of carbon-14 is approximately 5730 years.
The half life of a drug can vary from person to person.

Adjective

Referring to or having a duration of half the normal lifetime.
Relating to or indicating a decrease by half.

Example Sentences:

After the experiment, only half-life cells remained.
The half-life dose of the medication had little effect.

Related Products:

half-hour half-hourly half-in half-intensity half-jokingly half-knackered half-learned half-length half-life half-light half-mast half-mile half-million half-moon half-mourning half-naked half-pay

Sponsored (shop thru our affiliate link to help maintain this site):

Check latest bestsellers | New Arrivals in Electronics