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zeroth

[zeer-ohth] /ˈzɪər oʊθ/
adjective
1.
coming in a series before the first:
the zeroth level of energy.
Origin of zeroth
1895-1900
First recorded in 1895-1900; zero + -th1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for zeroth

zeroth

/ˈzɪərəʊð/
adjective
1.
denoting a term in a series that precedes the term otherwise regarded as the first term
Word Origin
C20: from zero + -th²
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
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17
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