per mille

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per mille

[pər ′mil]
(science and technology)
Per thousand or 10-3. Symbolized ‰.
References in periodicals archive ?
Stable isotope determinations were expressed as the permille difference from the international PeeDee Belemnite standard, where [[Delta].sup.13]C = [[Ratio.sub.sample] x [[Ratio.sub.standard]].sup.-1] x [10.sup.3] ([per thousand]).