A1 noun Neutro #2,715 mais comum

硬度

kōdo /koːdo/

Hardness refers to the degree or level of how hard a material is, often measured scientifically. It is commonly used to describe the physical properties of minerals, metals, or the mineral content in water (water hardness).

Exemplos

3 de 5
1

この地域の水道水は硬度が高いです。

The tap water in this area has high hardness.

2

製品の品質を保つために、金属の硬度を測定します。

To maintain product quality, we measure the hardness of the metal.

3

この石、硬度がすごくて全然削れないよ。

This stone is so hard (high hardness) that I can't scrape it at all.

Família de palavras

Substantivo
硬度
Verb
硬化する
Advérbio
硬く
Adjetivo
硬い
Relacionado
硬化剤
💡

Dica de memorização

The first kanji 硬 (hard) contains the radical for stone (石). Think of measuring the 'degree' (度) of a 'stone' (石).

Quiz rápido

ダイヤモンドはすべての鉱物の中で最高の___を誇る。

Correto!

A resposta correta é: 硬度

Exemplos

1

この地域の水道水は硬度が高いです。

everyday

The tap water in this area has high hardness.

2

製品の品質を保つために、金属の硬度を測定します。

formal

To maintain product quality, we measure the hardness of the metal.

3

この石、硬度がすごくて全然削れないよ。

informal

This stone is so hard (high hardness) that I can't scrape it at all.

4

モース硬度は、鉱物の引っかき傷に対する耐性を示す尺度である。

academic

The Mohs scale of hardness is a measure indicating a mineral's resistance to scratching.

5

弊社は、硬度1000以上の超硬材料を専門に扱っております。

business

Our company specializes in cemented carbide materials with a hardness of over 1000.

Família de palavras

Substantivo
硬度
Verb
硬化する
Advérbio
硬く
Adjetivo
硬い
Relacionado
硬化剤

Colocações comuns

硬度が高い to be high in hardness
硬度を測る to measure hardness
水の硬度 water hardness
硬度計 hardness tester
モース硬度 Mohs hardness

Frases Comuns

硬度成分

hardness components (minerals in water)

鉛筆硬度

pencil hardness (used for coatings)

ビッカース硬度

Vickers hardness

Frequentemente confundido com

硬度 vs 高度

Pronounced the same (kōdo), but '高度' means altitude or high-level, whereas '硬度' means hardness.

硬度 vs 硬さ

'Katasa' is a general word for hardness used in daily life, while 'Kōdo' is the technical/scientific term.

📝

Notas de uso

Use 'kōdo' when discussing technical specifications, water quality reports, or mineralogy. In casual conversation about how hard an object feels to the touch, 'katasa' is more natural.

⚠️

Erros comuns

The most common mistake for learners is writing the kanji for altitude (高度) instead of hardness (硬度) because they share the same reading.

💡

Dica de memorização

The first kanji 硬 (hard) contains the radical for stone (石). Think of measuring the 'degree' (度) of a 'stone' (石).

📖

Origem da palavra

A Sino-Japanese compound (kango) consisting of 硬 (hard/stiff) and 度 (degree/limit/measure).

Padrões gramaticais

Used as a noun followed by the particle 'が' or 'を'. Commonly follows '水の' (water's) or '金属の' (metal's).
🌍

Contexto cultural

Water hardness is a frequent topic in Japan because Japanese tap water is almost exclusively soft water, which affects the taste of tea and rice.

Quiz rápido

ダイヤモンドはすべての鉱物の中で最高の___を誇る。

Correto!

A resposta correta é: 硬度

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