WordNet
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) [syn: half-life]
Wikipedia
Half Life is a live effort released by the band 3. It contains both renditions from their debut album, Paint by Number, as well as unreleased tracks (some of which have since been featured on later studio albums). It was released in 2002 on Planet Noise Records.
Half Life is the 2006 debut novel of American writer and artist Shelley Jackson. The novel presupposes an alternate history in which the atomic bomb resulted in a genetic preponderance of conjoined twins, who eventually become a minority subculture.
Usage examples of "half life".
A silver image of the saint, half life-size, stands upon the rich marble altar.