| 释义 |
half life
Thesaurus| Noun | 1. | 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)half-lifeperiod, period of time, time period - an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period" |
TranslationsEncyclopediaSeehalf-lifehalf cystine half cys·tinerefers to one half of a cystine molecule or of a cystinyl residue in a protein or peptide.Half Life
Half LifeIn a pool of mortgages underlying a mortgage-backed security, the length of time it takes for half the aggregate principal to be repaid. A half life is normally about 12 years, but this may vary depending on how often homeowners refinance their mortgages (which pays off all principal at once). Half lives are calculated for mortgage-backed securities issued or guaranteed by Freddie Mac, Fannie Mae, and Ginnie Mae.See HL
See HFhalf life
Synonyms for half lifenoun 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)SynonymsRelated Words- period
- period of time
- time period
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