vacuum wellpoint - meaning and definition. What is vacuum wellpoint
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What (who) is vacuum wellpoint - definition

HYPOTHETICAL VACUUM, LESS STABLE THAN TRUE VACUUM
Quantum Vacuum Collapse; Vacuum decay; Vacuum metastability disaster; Vacuum metastability event; Bubble nucleation; Vacuum collapse; Quantum vacuum collapse; Vacuum instability; True vacuum; False vacuum collapse; Collapse of the vacuum; False vacuum catastrophe; Electroweak vacuum; Higgs vacuum; False vacuum; Entropy bubble

vacuum cleaner         
DEVICE THAT SUCKS UP DUST AND DIRT FROM FLOORS
Vacuum Cleaner; Vacuum cleaners; Vacuum Cleaners; Wet/dry vacuum; Hoovering; Vaccum cleaner; Dust sucker; Vacuumming; Vacuum cleaning; Vacuum sweeper; Vacuum belt; Vacuum filter; Vacuum Filter; Vacuum machine; Daniel Hess; Hoover Constellation; Shop vac; Shop-vac; Shop Vac; Shop-Vac; Shop vacuum; Shop vacuum cleaner; Vaccuum cleaner; Hoover (vacuum cleaner); Cyclonic vacuum cleaner; Vacuuming; Kruimeldief; Kruimeltjesdief
also vacuum-cleaner (vacuum cleaners)
A vacuum cleaner or a vacuum is an electric machine which sucks up dust and dirt from carpets.
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Vacuum engineering         
TECHNOLOGY TO LOWER GAS PRESSURES FOR VARIOUS TECHNICAL AND SCIENTIFIC PURPOSES
Vacuum equipment; Vacuum system
Vacuum engineering deals with technological processes and equipment that use vacuum to achieve better results than those run under atmospheric pressure. The most widespread applications of vacuum technology are:
Vacuum sewer         
METHOD OF TRANSPORTING SEWAGE FROM ITS SOURCE TO A SEWAGE TREATMENT PLANT
Vacuum sewerage; Vacuum flush
A vacuum sewer or pneumatic sewer system is a method of transporting sewage from its source to a sewage treatment plant. It maintains a partial vacuum, with an air pressure below atmospheric pressure inside the pipe network and vacuum station collection vessel.

Wikipedia

False vacuum decay

In quantum field theory, a false vacuum is a hypothetical vacuum that is relatively stable, but not in the most stable state possible. This condition is known as metastable. It may last for a very long time in that state, but could eventually decay to the more stable state, an event known as false vacuum decay. The most common suggestion of how such a decay might happen in our universe is called bubble nucleation – if a small region of the universe by chance reached a more stable vacuum, this "bubble" (also called "bounce") would spread.

A false vacuum exists at a local minimum of energy and is therefore not completely stable, in contrast to a true vacuum, which exists at a global minimum and is stable.