The term occurs so rarely in English that major dictionaries do not agree on the spelling or pronunciation even within a single dialect of English and some major dictionaries such as Macmillan and Longman do not even contain an entry. The term is more common in other European languages where it is used in contexts, such as blood alcohol content, that are usually expressed as a percentage in English-speaking countries.
Visualisation of 1%, 1‰, 1‱ and 1 ppm as the fraction of the red cube to its respective block (larger version)
A railroad distance and gradient sign in the Czech Republic. The 20‰ grade is equivalent to 2%.
Examples of use include:
Legal limits of blood-alcohol content for driving a road vehicle in some countries: for example: 0.6‰ or 0.2‰.
Seawater salinity: for example: "the average salinity is 35‰".
^Macmillan Dictionary. "No result". Accessed 1 Aug 2014.
^Longman Dictionary of Contemporary English. "No result". Accessed 1 Aug 2014.
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