Definition of low pressure noun from the Oxford Advanced American Dictionary

     

    low pressure

     noun
    noun
     
    [uncountable]
     
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  1. 1the condition of air, gas, or liquid that is kept in a container with little force Water supplies to the house are at low pressure.
  2. 2a condition of the air that affects the weather when the pressure is lower than average compare high pressure
See the Oxford Advanced Learner's Dictionary entry: low pressure