Answer Wiki. It means that nothing is connected to its shaft and it is not doing any useful work. Consider this electric bike analogy, When you operate an electric bike with its driving wheels lifted from the ground, the motor driving it is said to be in no load because it is not doing any useful work and also doesn't require much power to operate.
The result of such a process; a rearrangement or recombination of elements: permutations of gene order. c. Mathematics A rearrangement of the elements of a set. 1  A complete change; a transformation: the country's permutation into a modern democracy.
When the series for the tangent and secant functions are expressed in a form in which the denominators are the corresponding factorials, the numerators, called the tangent numbers and secant numbers respectively, have a combinatorial interpretation: they enumerate alternating permutations of finite sets, of odd cardinality for the tangent series and even cardinality for the secant series.