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A per mille〔''Cambridge Dictionary Online''. "(per mille )". Cambridge University Press (Cambridge), 2014. Accessed 31 August 2012.〕〔''Oxford Dictionaries: The British & World Dictionary''. "(per mille )" Accessed 1 Aug 2014.〕〔Unicode. "(General Punctuation )". 2014. Accessed 5 Aug 2014.〕 (from Latin '' mīlle'', "in each thousand"〔), also spelled per mil,〔''Oxford English Dictionary'', "per mil, ''adv''." Oxford University Press (Oxford), 2005.〕〔〔''eReference''. "(per mil )". Houghton Mifflin. Accessed 31 Aug 2012.〕〔〔〔 per mill,〔〔''Merriam–Webster Online''. (per mill )". Accessed 1 Aug 2014.〕〔〔''Oxford Dictionaries: The American Dictionary''. "(per mill )". Accessed 1 Aug 2014.〕〔''Collins English Dictionary''. "(per mill '' or '' per mil )". 2014. Accessed 1 Aug 2014.〕〔''Collins American English Dictionary''. "(per mill )". 2014. Accessed 1 Aug 2014.〕 permil,〔 permill,〔 or permille〔 is a sign indicating parts per thousand. Per mil should not be confused with parts per million (ppm). The sign is written ‰, which looks like a percent sign (%) with an extra zero in the divisor. It is included in the General Punctuation block of Unicode characters: .〔 It is accessible in Windows using ALT+0137.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〔See entries above〕 and some major dictionaries such as ''Macmillan''〔''Macmillan Dictionary''. "(No result )". Accessed 1 Aug 2014.〕 and ''Longman''〔''Longman Dictionary of Contemporary English''. "(No result )". Accessed 1 Aug 2014.〕 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. ==Examples== Examples of common 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‰". * tunnel and railway gradients (in some countries in Europe) * birth and death rates * baseball batting averages (colloquially) * property taxation rates: the millage rate (U.S.) or mill rate (Canada) * expressing stable-isotope ratios - for example: "δ13C was measured at −3.5‰" * expressing costs for print and online advertisements which are commonly sold at cost per mille (CPM); this is the common unit for all banner and display advertising * frequently used by email service providers to denominate the cost for 1,000 emails delivered as a cost per mille (CPM) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Per mille」の詳細全文を読む スポンサード リンク
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