Half Life

nounverified·updated May 18, 2026

GlossaryL1 — what DictionaryL2 — how used ThesaurusL3 — relations Universaleverything

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)

Framework senses

2 senses across 2 frameworks

Wordset Dictionary1 senseview framework →

§1: 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)

Legacy lexicon import1 senseview framework →

§1 · legacy_primary: 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)
DR-088 backfill from the noun definition column