fallback

An act of falling back.

A failure of one of the rocket's first-stage engines just after liftoff would result in a destructive pad fallback.

The black hole formed as a result of fallback of ejecta onto the neutron star initially created by the supernova explosion.

A backup plan or contingency strategy; an alternative which can be used if something goes wrong with the main plan; a recourse.

As a fallback, I suppose we can use typewriters if the word processing system fails.

A reduction in bitumen softening point, sometimes called refluxing or overheating, in a relatively closed container.

Pulverised material that falls back to earth after a nuclear explosion; fallout.

Particle size distributions of fallback and ejecta were determined principally by mechanical sieving and weighing.

That can be resorted to as a fallback.

a fallback plan

Misspelling of fall back.