English Dictionary

vacuum

IPA（発音記号）

/ˈvæ.kjuːm/

名詞

口語

A region of space that contains no matter. / (colloquial, only pluralized as "vacuums") A vacuum cleaner.

日本語の意味

物質が存在しない空間 / 掃除機

Scientists study how particles behave when released into a vacuum during laboratory simulations.

科学者たちは実験室のシミュレーションで、粒子を真空中に放したときの挙動を研究している。

意味（1）

A region of space that contains no matter.

The Wards are open-topped, with skyscrapers rising from the superstructure. Towers are sealed against vacuum, as the breathable atmosphere envelope is only maintained to a height of about seven meters. The atmosphere is contained by the centrifugal force of rotation and a membrane of dense, colorless sulphur hexafluoride gas, held in place by carefully managed mass effect fields.

意味（2）

(colloquial, only pluralized as "vacuums") A vacuum cleaner.

意味（3）

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

意味（4）

(physics) A spacetime having tensors of zero magnitude.

意味（5）

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.

vacuums （ plural ）

vacua （ formal plural rare ）