Underboost
noun, verb ·Rare ·Advanced level
Definitions
- 1 The process of underboosting. uncountable
"After much analysis and compromise of the variables such as RPM, altitude, carburetor air temperature, fuel/air ratio, that affect BMEP, a simple solution has been arrived at to prevent underboost."
- 2 An instance of underboost. countable
"So pilots, keep the pressure on to stop underboosts and watch the red lines to stop overboosts."
- 1 To create too little pressure in an engine's combustion chamber.
"It enables you to properly time the automatic loading of the entire system so that the regulator will not overboost, which would cause a hunting action, or so that it will not underboost and cause a deficiency in the pressure."
Example
More examples"It enables you to properly time the automatic loading of the entire system so that the regulator will not overboost, which would cause a hunting action, or so that it will not underboost and cause a deficiency in the pressure."
Etymology
From under- + boost.
Related phrases
More for "underboost"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.