underpressure

English

Etymology

under- +‎ pressure

Noun

underpressure (plural underpressures)

1. insufficient pressure; a marked drop in pressure
   • 2007, Vladimir A. Rakov, Martin A. Uman, Lightning: Physics and Effects, page 378:

     The expanding-hot-channel mechanism predicts an initial positive pressure change (an overpressure) while the electrostatic-pressure-relief mechanism predicts an initial negative pressure change (an underpressure).

Antonyms

• overpressure

Translations

insufficient pressure

• Czech: podtlak m
• Finnish: alipaine (fi)
• German: Unterdruck (de) m
• Swedish: undertryck (sv) n