Open Dictionary

PH

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Table of contents

1 Translingual

Translingual

Etymology

From p, denoting negative logarithm, and H, denoting hydrogen.

Abbreviation

pH (functioning as a noun; plural pHs)

The negative of the logarithm to the base 10 of the concentration of hydrogen ions, measured in moles per liter; a measure of acidity or alkalinity of a substance, which takes numerical values from 0 (maximum acidity) through 7 (neutral) to 14 (maximum alkalinity).

Abbreviation

The Philippines.

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WordNet Definitions

The noun "ph" has one sense:

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