Nozzle Reaction refers to the reactive force experienced by a firefighter when operating a hose nozzle, resulting from the high-pressure water being discharged. This force can significantly impact the firefighter's ability to maintain control of the nozzle, especially in dynamic environments such as during an active fire suppression operation. Not to be confused with nozzle pressure, which pertains to the water pressure at the nozzle outlet, nozzle reaction is critical for effective hose management within the Incident Command System (ICS) framework.
Category context: Core tactics, command, suppression, ventilation, search, and water supply terminology used on the fireground.