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half-life
(redirected from half life)

    Also found in: Dictionary/thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.02 sec.
Half-life
The point in the life of a mortgage-backed security guaranteed or issued by the Government National Mortgage Association, the Federal National Mortgage Association or the Federal Home Loan Mortgage Corporation when half the principal has been repaid.
half-life
The length of time before half the principal on a debt is expected to be repaid through amortization or sinking fund payments. For example, a 25-year bond issue may require the issuer to retire 5% of the beginning principal commencing 5 years after the issue date. Thus, the bond issue has a half-life of 5 years plus the number of years required to retire half the issue, or 15 years. Mortgage-backed securities often have a relatively short half-life because many homeowners pay off or refinance their mortgages early. Also called average life.


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This comprehensive selection guide for the Varox peroxide line of products for crosslinking elastomers lists 25 products available from the company and provides detailed information on physical and chemical data, safety, half life temperatures and compounding.
Crosslinking agents. (Literature: materials) by Rubber World
The new OLED-XL devices typically have 6-10 times longer luminance half life and exhibit 3-5 times the efficiency, depending on the specific OLED-XL product and operating parameters.
eMagin Announces New Breakthrough OLED-XL Displays; New Display Class ... by Business Wire
A relative measure of peroxide stability is known as the ten-hour half life temperature (10hr HLT).
The chemistry of peroxide vulcanization by Dluzneski, Peter R. / Rubber World
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