濃度
The degree to which a substance is contained within a solution or mixture, or the depth of color and thickness of a liquid. It is commonly used in scientific, culinary, and environmental contexts to describe how strong or weak a solution is.
Exemples
3 sur 5このコーヒーは濃度がちょうどいいです。
This coffee has the perfect concentration/strength.
大気中の二酸化炭素の濃度が上昇しています。
The concentration of carbon dioxide in the atmosphere is rising.
スープの濃度、もうちょっと濃いほうが好きだな。
I like the soup's thickness to be a bit heavier.
Famille de mots
Astuce mémo
The first kanji 濃 means 'thick' or 'dark' (like coffee), and 度 means 'degree'. So, it literally means the 'degree of thickness'.
Quiz rapide
この薬は血液中の＿＿＿を一定に保つ必要があります。
Correct !
La bonne réponse est : 濃度
Exemples
このコーヒーは濃度がちょうどいいです。
everydayThis coffee has the perfect concentration/strength.
大気中の二酸化炭素の濃度が上昇しています。
formalThe concentration of carbon dioxide in the atmosphere is rising.
スープの濃度、もうちょっと濃いほうが好きだな。
informalI like the soup's thickness to be a bit heavier.
溶液の濃度を正確に測定してください。
academicPlease measure the concentration of the solution accurately.
新製品のアルコール濃度を調整する必要があります。
businessWe need to adjust the alcohol concentration of the new product.
Famille de mots
Collocations courantes
Phrases Courantes
酸素濃度
oxygen concentration
血中濃度
blood concentration (of a drug)
濃度計
densitometer / concentration meter
Souvent confondu avec
密度 (Mitsudo) refers to density (mass per volume), while 濃度 (Noudo) refers to the amount of a specific substance within a mixture.
粘度 (Nendo) refers to the viscosity or stickiness of a fluid, whereas 濃度 refers to chemical concentration.
Notes d'usage
While 濃さ (kosa) is often used for everyday things like taste or color, 濃度 (noudo) sounds more technical or formal. It is almost always used when referring to measurable percentages or scientific data.
Erreurs courantes
Learners sometimes use 濃度 to describe a crowded room of people; however, 密度 (density) should be used for physical spacing of objects or people.
Astuce mémo
The first kanji 濃 means 'thick' or 'dark' (like coffee), and 度 means 'degree'. So, it literally means the 'degree of thickness'.
Origine du mot
A compound word consisting of 濃 (Nō - thick/dense) and 度 (Do - degree/measurement), originating from Middle Chinese roots.
Modèles grammaticaux
Contexte culturel
In Japan, health awareness is high, and you will often see 'salt concentration' (塩分濃度) mentioned on food labels and health apps to help prevent high blood pressure.
Quiz rapide
この薬は血液中の＿＿＿を一定に保つ必要があります。
Correct !
La bonne réponse est : 濃度
Vocabulaire associé
Mots lis
協力
A1Cooperation or collaboration where two or more people combine their efforts to achieve a common goal. It is used in both personal and professional settings to describe working together as a team or providing assistance.
提案
A1A suggestion or proposal of a plan or idea for others to consider. It is used in both casual conversations and professional meetings to introduce a potential course of action.
輸出
A1The act of sending goods or services produced in one country to another country for sale or trade. In Japanese, it functions as a noun and a suru-verb, representing the 'exit' of products from a domestic market.
輸入
A1The act of bringing goods, services, or materials into a country from abroad for sale or use. In Japanese, it functions as a noun or can be combined with 'suru' to become a verb meaning 'to import'.
資源
A1Shigen refers to valuable materials or assets, such as natural minerals, energy sources, or human talent, that can be used for production or survival. It is widely used in economics, environmental science, and daily life to describe both raw materials and abstract wealth.
保護
A1The act of keeping someone or something safe from harm, damage, or loss by providing care or creating boundaries. It is a versatile term in Japanese used for social welfare, environmental conservation, and digital security.
観察
A1Observation is the act of watching someone or something carefully in order to gain information or understand a process. It is frequently used in scientific studies, nature analysis, and describing the act of paying close attention to details.
競争
A1Kyousou refers to the act of competing or vying with others to achieve a goal, win a prize, or establish superiority. It is a versatile term used in sports, business, and academics to describe both structured contests and general rivalry.
拡大
A1The act of making something larger in size, scale, or scope. It is frequently used for physical enlargement (like a photo) or abstract growth (like a business or a problem).
製造
A1The process of making or producing goods, typically on a large scale using machinery. It refers specifically to industrial manufacturing rather than making things by hand on a small scale.
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