noun
lactic acid
A chemical term for the organic acid produced in muscles during exercise and found in sour milk products.
激しい運動の後、筋肉に乳酸がたまる。
After intense exercise, lactic acid builds up in the muscles.
乳酸はヨーグルトの酸味の原因です。
Lactic acid is responsible for the sour taste of yogurt.
Lactic acid bacteria; the microorganisms that produce lactic acid, often used in fermented foods.
From 乳 (milk) + 酸 (acid), referring to its original isolation from sour milk.