What is the meaning of Saltation?

A leap, jump or dance.

The act of jumping, or hopping, using all legs simultaneously (although the contribution to motion is typically made chiefly by the hind legs).

Beating or palpitation.

A sudden change from one generation to the next; a mutation.

Any abrupt transition.

The transport of loose particles by a fluid (such as wind or flowing water).

saltation

Source: wiktionary.org