porosity

IPA/pɔːˈrɒsəti/
IPA/pɔːˈrɑːsəti/

porosity — 名詞

1. the degree to which a material contains tiny holes or spaces inside it, allowing

1.名詞B2
釋義

孔隙率

物質內部空隙所占的比例

the degree to which a material contains tiny holes or spaces inside it, allowing liquids or gases to pass through slowly

例句

The high porosity of the sandstone allowed water to seep through quickly.

這塊砂岩的高孔隙率讓水迅速滲透過去。

collocation: high porosity / low porosity

Roya tested the porosity of the clay before using it for her pottery project.

Roya 在進行陶藝創作前先測試了黏土的孔隙度。

test the porosity of [material]

同義詞
  • permeability

    focuses on how easily fluids pass through, whereas porosity emphasises the void spaces themselves

  • absorbency

    describes the ability to take in liquid, which is related to but not the same as porosity

  • sponginess

    more informal; describes the physical feel of being soft and full of holes

反義詞
  • density

    a material with high density typically has low porosity

  • solidity

    the state of being solid and without internal spaces

文法句型

uncountable: Porosity [verb] ...

countable in technical contexts: ... porosities ...

用法筆記

Typically uncountable. In technical or comparative contexts, the plural form 'porosities' can refer to different degrees or types of porosity across materials.

常見錯誤

❌The porosity of this sponge is very porous.
✅The porosity of this sponge is very high.
💡'porous' is an adjective describing the material itself; use 'high' or 'low' to describe the degree of porosity.
❌This material has many porosities.
✅This material has high porosity.
💡In everyday use, 'porosity' is uncountable; the plural form is reserved for technical comparisons.