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u 235 - 2 dictionary results

U-235

Chemistry.
uranium 235.
Also, U 235.

uranium 235

–noun Chemistry.
the radioactive uranium isotope having a mass number of 235, comprising 0.715 percent of natural uranium. When bombarded with neutrons it undergoes fission with the release of energy.
Also called U-235, U 235, actinouranium.


Origin:
1935–40
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