half-life




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)

    • half-life - thesaurus

    generated at 17:45:01 on 15-08-24

    Spelling dictionary home

    Try Spellzone for free

    Search for a word



    One of the students has put in a huge amount of effort in completing Spellzone at least 3 times a week since his arrival with us in January. Looking at his scores after the latest GL testing, his standardised score has risen from 99 to 131. This is a truly phenomenal result. I just wanted to share the best result I have ever seen.

    Terrie Penrose-Toms, Casterton College

    read more...