1. Relating to or adapted for springing or moving to music: There are some dances that have a lot of saltatory or abrupt motions instead of gliding around as when waltzing.
2. A reference to going around from one place to another one by hopping rather than by smooth gradual walking or running: Frogs, toads, and kangaroos are a few examples of creatures that progress around in more saltatory ways.

As the biologist walked through the field, he could see the saltatory or springing around of the grasshoppers that were surrounding him.

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A form of nerve impulse conduction in which the impulse jumps from one Ranvier's node (gap) to the next, rather than traveling the entire length of the nerve fiber: Saltatory conduction (from the Latin saltare, "to hop" or "to leap") is the transmission of a nerve impulse from node to node (collection of tissue) of a nerve fiber, rather than along the membrane (thin layer of tissue) which is faster than along unmyelinated fibers.

The appearance of a sudden change within a species, caused by mutation: Saltatory evolution involves the progression of a species by sudden major changes rather than by the gradual accumulation of minor changes.

The phenomena of saltatory evolutions occur predominantly in plants as a result of having one or more extra sets of chromosomes or DNA that are encoded with genes and structural proteins.

A sudden, violent, involuntary contraction or a jerky affection of the muscles of the lower extremities; such as the legs: Saltatory spasms cause patients' leg muscles to twitch or to jerk and are also known as tics.