a mathematical group whose elements are permutations and in which the product of two permutations is the same permutation as is obtained by performing them in succession.
Why Are Singing Groups Called “Glee Clubs”?These infamously chipper singing groups are called glee because the melding of voices makes everyone happy, right? Actually, joy has little to do with it.
Origin of permutation group
First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019