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1.1Mathematics mass nounThe action of changing the arrangement, especially the linear order, of a set of items.
‘A simple position permutation was also used to generate random sequences.’
‘The statistical significance of this test is calculated by permutation.’
‘All significance thresholds were determined empirically by permutation’
‘The statistical significance of the values was estimated by permutation analysis using 1,000 replications.’
‘Chromosome-wide significance thresholds were determined by permutation as previously described.’
1.2British A selection of a specified number of matches in a football pool.
Origin
Late Middle English (in the sense ‘exchange, barter’): via Old French from Latin permutatio(n-), from the verb permutare ‘change completely’ (see permute).