a unit expressing the concentration of strontium-90 in an organic medium, such as soil, milk, bone, etc, relative to the concentration of calcium in the same mediumAbbreviation: SU
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What does “barren” mean?
Words nearby strontium unit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012