Interface for typing computer commands.

Script annotated for theatrical production.

User input request in dialog.

(nuclear physics) A neutron produced immediately by the fission of an atomic nucleus, instead of being emitted by decaying fission products seconds to minutes later; over 99% of all fission neutrons are prompt neutrons (the exact proportion depends on the nuclide undergoing fission).

(nuclear physics) In a state where the prompt neutrons produced by a nuclear fission chain reaction are just sufficient to sustain the chain reaction on their own (past which changes in reaction power occur on a timeframe of milliseconds, too rapidly for a human operator to control).

In a theatre, the prompt corner or prompt box is the place where the prompter—usually the stage manager in the US or deputy stage manager in the UK—stands in order to coordinate the performance and to remind performers of their lines when required.

(nuclear physics) The point at which the prompt neutrons produced by a nuclear fission chain reaction are just sufficient to sustain the chain reaction on their own (the state of being prompt critical); past this point, changes in reaction power are controlled by changes in the prompt neutron flux, and occur on a timeframe of milliseconds, too rapidly to be controlled by mechanical means.

Reminder or cue for action.

Script annotated for theatrical production.

Stage left from actor's view.

Request that contradicts the original.