rarefaction

/ɹɛɹfˈækʃən/ noun C1

the process of making something less dense

Word Origin Rarefaction is a scientific word built from Latin 'rarus' (rare, thin) and 'facere' (to make). So it's literally 'making thin' — the process of reducing density, like air becoming less dense. The same 'facere' root gives us fact, factory, manufacture, and perfect. The -ion suffix turns it into a noun. Rarefy is the verb form.

noun the process of making something less dense C1

Heating causes rarefaction of the gas.

(名词) 稀薄化;稀疏化;稀释 【使某物密度降低的过程】

加热导致气体的稀薄化。

(sustantivo) rarefacción [rarefacción; proceso de hacer algo menos denso]

El calentamiento provoca la rarefacción del gas.

(nom) raréfaction [Processus par lequel un milieu ou une substance devient moins dense.]

Le chauffage provoque une raréfaction du gaz.

(Substantiv) Verdünnung; Rarefizierung [der Vorgang, bei dem ein Stoff an Dichte verliert und sich ausdehnt.]

Durch Erhitzen kommt es zur **rarefaction** des Gases.

(名詞) 物質の密度を低くする過程。気体を薄くすること。

加熱により気体の**希薄化**が起こる。

(substantivo) rarefação [o processo de tornar algo menos denso]

O aquecimento causa a rarefação do gás.

noun A reduction in the density of a material, especially that of a fluid. countable

The rarefaction of air at high altitudes makes breathing difficult.

(名词) 稀疏化;稀薄化

高海拔地区空气的稀薄使得呼吸困难。

(sustantivo) rarefacción; enrarecimiento [Una reducción en la densidad de un material, especialmente la de un fluido.]

La rarefacción del aire a grandes altitudes dificulta la respiración.

(nom) raréfaction [Diminution de la densité d'un matériau, en particulier d'un fluide.]

La rarefaction de l'air à haute altitude rend la respiration difficile.

(Substantiv) Verdünnung [Die Verringerung der Dichte eines Stoffes, insbesondere eines Gases oder einer Flüssigkeit, oft durch Druck- oder Temperaturänderung.]

Die *rarefaction* der Luft in großen Höhen erschwert das Atmen.

(名詞) 物質、特に流体の密度が減少すること。

高地では空気が希薄になるため、呼吸が困難になる。

(substantivo) rarefação [Uma redução na densidade de um material, especialmente a de um fluido.]

A rarefação do ar em grandes altitudes dificulta a respiração.

Word parts: rare + fact + ion

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