• word of the day

    half life

    half life - Dictionary definition and meaning for word half life

    Definition
    (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)
    Synonyms : half-life

Word used in video below:
text: ♪ We could be half Aussie and half Japanese ♪
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