vacuum-pump

vacuum-pump

A scientist uses a vacuum-pump to remove air from a sealed glass chamber.

Definition
  1. Noun:
    • A device for removing gas molecules: "vacuum-pump" refers to a mechanical apparatus that removes gas molecules from a sealed volume to create a partial vacuum.
    • Application in science and industry: It is used in laboratories, manufacturing, and refrigeration systems to evacuate air or other gases from a chamber.
Usage Examples
  • Noun:
    • The scientist used a vacuum-pump to remove air from the glass container before the experiment. (A device to create a vacuum by extracting gas.)
    • The vacuum-pump in the factory helps to seal food packages by removing oxygen. (A machine used for industrial packaging processes.)
Advanced Usage

  • "to operate a vacuum-pump": to control or run the device for its intended function.

    • Technicians must be trained to operate a vacuum-pump safely in high-pressure environments. (To manage the pump correctly.)

  • "vacuum-pump oil": a special lubricant used in the pump to maintain its efficiency and prevent contamination.

    • Regular replacement of vacuum-pump oil is essential for optimal performance. (Oil used specifically for vacuum pumps.)
Variants and Related Words

  • Vacuum (n): a space entirely devoid of matter; an empty space.

    • The vacuum in the tube was perfect for the physics demonstration. (A region with no air or gas.)

  • Pump (n): a mechanical device that moves fluids or gases by suction or pressure.

    • The water pump failed, so the basement flooded. (A device for moving liquids.)
Synonyms
  • Air pump: a device that moves air; often used synonymously in contexts involving gas removal.
  • Evacuation pump: a pump specifically designed to remove gas from a sealed container.
Phrasal Verbs
  • Pump out: to remove or expel something continuously (often used with "vacuum-pump" in context).
    • The vacuum-pump will pump out all the air from the chamber. (To extract air persistently.)
Related Idioms
  • "To pump someone for information": to question someone persistently to obtain details (not directly related to "vacuum-pump" but uses "pump").
    • The journalist tried to pump the politician for information about the scandal. (To extract information forcefully.)