Translation guide
The quality of having pores or being permeable. In Japanese, this is expressed through nouns and adjectives that describe physical porosity, as well as metaphorical uses like openness or absorbency.
Describing materials like rocks, soil, or filters that have small holes allowing liquid or gas to pass through.
The most direct technical term for porosity, used in science and engineering.
この岩は多孔性が高い。
This rock has high porosity.
Specifically refers to the percentage of pore volume in a material, common in materials science.
このセラミックの気孔率は20%です。
The porosity of this ceramic is 20%.
Used in civil engineering and soil mechanics for void ratio or porosity.
土壌の空隙率が高いと水はけが良い。
If the soil porosity is high, drainage is good.
Less common synonym for porosity, sometimes used in biology or geology.
有孔性の材料は断熱材として使われる。
Porous materials are used as insulation.
Describing something as having many small holes, often in everyday contexts.
A simple, natural way to say something has many holes, implying porosity.
このスポンジは穴が多い。
This sponge is very porous.
Adjective meaning 'porous' (literally 'many-pore quality'), used for materials.
多孔質の石が水を吸収する。
Porous stone absorbs water.
Means 'has many gaps/crevices', can imply porosity in a less technical sense.
このパンはすき間が多くて軽い。
This bread is porous and light.
Using porosity metaphorically to describe boundaries, systems, or ideas that are open or easily influenced.
These words mean 'permeability' and can be used figuratively for ideas or influences spreading.
国境の浸透性が高い。
The porosity of the border is high.
Means 'open', often used for systems or organizations that are accessible or transparent.
開かれた組織は外部の意見を取り入れやすい。
An organization with porosity easily incorporates outside opinions.
Describes blurred boundaries, implying porosity in a conceptual sense.
この分野は境界があいまいで、他分野の影響を受けやすい。
This field has high porosity and is easily influenced by other fields.
Directly translating 'porosity' as ポロシティ is not common outside technical contexts. Use the Japanese terms above for natural expression.