pH
US /ˌpiːˈeɪtʃ/
UK /ˌpiːˈeɪtʃ/
名詞
pH, 水素イオン濃度
a measure of the acidity or alkalinity of a solution, numerically equal to 7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale usually runs from 0 to 14.
例:
•
The ideal pH for swimming pool water is between 7.4 and 7.6.
プールの水の理想的なpHは7.4から7.6の間です。
•
Lemon juice has a low pH, making it acidic.
レモン汁はpHが低く、酸性です。