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vacuum

noun
/ˈvæ.kjuːm/

Etymology

Borrowed from New Latin vacuum (“vacuum”), a subsense of Classical Latin vacuum (“empty space”), a substantivised form of vacuus (“empty”); related to vacāre (“to be empty”). The exercise sense comes from analogy to the sucking action of a vacuum cleaner.

  1. derived from vacuum
  2. borrowed from vacuum

Definitions

  1. A region of space that contains no matter.

  2. The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a…

    The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, such as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.

    • a vacuum of 26 inches of mercury, or 13 pounds per square inch

  3. Ellipsis of vacuum cleaner.

  4. ›+ 7 more definitions

    1. A spacetime having tensors of zero magnitude.

    2. A ground state of a quantum field or of local spacetime, or more abstractly the…

      A ground state of a quantum field or of local spacetime, or more abstractly the lowest-energy state of a system.

    3. An emptiness in life created by a loss of a person who was close, or of an occupation.

      • Henrietta soon found a terrible vacuum left, by the letters in which she used to pour forth every feeling and thought to her uncle.

    4. An exercise in which one draws their abdomen towards the spine.

      • Abs show up in a most-muscular shot, a vacuum shot, the hands-behind-head compulsory ab shot, twisting poses, and so on.
      • Right I'm off to practice my vacuum - suck in those stomachs now!
      • When I do the 'gut vacuum' exercise the abdominal wall seems to return to normal size, as far as I can tell under the flab.

    5. To clean (something) with a vacuum cleaner.

      • “Who in the world cleans an attic? That's like vacuuming a shed.”

    6. To use a vacuum cleaner.

    7. To optimise a database or database table by physically removing deleted tuples.

      • But the advantage of an auto-vacuumed database is that when B-tree pages are no longer needed, they are moved to the end of the database file and then the database file is truncated, thus returning the unused pages back to the filesystem.

The neighborhood

Derived

abdominal vacuum, bee vacuum, central vacuum, double Kerr vacuum, electrovacuum, false vacuum, high vacuum, in a vacuum, intervacuum, Kerns-Wild vacuum, Kerr vacuum, Khan-Penrose vacuum, legal vacuum, nature abhors a vacuum, nonvacuum, Oszváth-Schücking vacuum, partial vacuum, political vacuum, power vacuum, quasivacuum, rough vacuum, Schwarzschild vacuum, stomach vacuum, Taub-NUT vacuum, thermal-vacuum, Torricellian vacuum, ultravacuum, vacuumable, vacuum activity, vacuum airship, vacuum aspiration, vacuum bag, vacuum balloon, vacuum bed, vacuum bomb, vacuum bottle, vacuum brake, vacuum bubble, vacuum catastrophe, vacuum chamber · +26 more

Vish — recursive loop

A definitional loop anchored at vacuum. Each word in the ring is defined by the next; follow the chain far enough and it folds back on itself. Scroll to it and watch.

01vacuum02pressure03impulse04force05accelerate06quicken07speed08film09medium

A definitional loop anchored at vacuum. Each word in the ring appears in the definition of the next; follow the chain far enough and it folds back on itself.

9 hops · closes at vacuum

curated · pre-corpus. live cycle detection across the full graph is the next major milestone.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA