What term describes devices used to produce smoke screens or incendiary effects?

The term that describes devices used to produce smoke screens or incendiary effects is pyrotechnics. Pyrotechnics refers to the technology and materials used for the controlled use of fire and its effects, including smoke production, visual displays, and incendiary reactions. This classification encompasses a variety of devices designed for specific purposes, such as creating smoke to obscure visibility, signaling, or producing effects in military operations.

While explosive devices produce explosions and can cause destructive effects, they are not specifically designed for smoke screens or incendiary purposes. Illuminators are typically used to provide visibility or illuminate areas rather than to create smoke or incendiary effects. Signal devices are used primarily for communication purposes, usually producing visual or auditory signals to convey information or instructions, rather than creating smoke screens or incendiary effects.