Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
half-life | Yes | No | No | No |
half life | Yes | No | No | No |
half-life (noun) | half life (noun) |
---|---|
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) | 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) |