濃度(のうど)

のうど
noun
concentration, density
1. concentration
The amount of a substance dissolved or present in a given volume, especially in chemistry and science.
塩(しお)の濃度(のうど)を測(はか)る。
To measure the salt concentration.
血中(けっちゅう)アルコール濃度(のうど)が高(たか)いと運転(うんてん)できない。
You cannot drive if your blood alcohol concentration is high.
この洗剤(せんざい)は濃度(のうど)が濃(こ)いので、薄(うす)めて使(つか)ってください。
This detergent is concentrated, so please dilute it before use.
2. density, thickness, intensity
The degree of strength or intensity of something, such as color, flavor, or other qualities.
この色(いろ)は濃度(のうど)が高(たか)い。
This color has a high intensity.
濃度(のうど)の濃(こ)いコーヒーが好(す)きだ。
I like strong-flavored coffee.
煙(けむり)の濃度(のうど)が上(あ)がり、前(まえ)が見(み)えなくなった。
The density of the smoke increased, and I could no longer see ahead.

濃度(のうど) is used in scientific, medical, and everyday contexts to describe how concentrated or dense something is.

Common collocations:

  • 濃度(のうど)が高(たか)い／低(ひく)い (high/low concentration)
  • 濃度(のうど)を測(はか)る (to measure concentration)
  • 濃度(のうど)を上(あ)げる／下(さ)げる (to raise/lower concentration)

Related terms:

  • 高(こう)濃度(のうど) (high concentration)
  • 低(てい)濃度(のうど) (low concentration)
  • 血中(けっちゅう)濃度(のうど) (blood concentration)
general
Added 2026.1.13 20:59 · Revised 2026.2.19 23:52
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