pH

See also: ph, Ph, PH, .ph, P&H, and pḥ

Translingual

Etymology 1

Originally introduced in 1909 by S. P. L. Sørensen, using the notation p_H⁺ for what he called the “hydrogen ion exponent” (Wasserstoffionenexponent ) of a solution. He may have chosen the symbol p arbitrarily; another suggestion is that it abbreviates German Potenz (“power”). The “H” is the international chemical symbol for the element hydrogen.

Symbol

pH

1. (chemistry) Measure of the acidity or basicity of an aqueous solution, equal to the negative logarithm of the concentration of hydronium ions in molars

Coordinate terms

• pOH

Etymology 2

Symbol

pH

1. (metrology) Symbol for picohenry, an SI unit of electrical inductance equal to 10⁻¹² henrys.

See also

• pK

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Egyptian

Romanization

pH

1. Manuel de Codage transliteration of pḥ.

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Japanese

Etymology 1

Borrowed from translingual pH.

Pronunciation

• (Tokyo) ピーエ​ーチ [pìíéꜜèchì] (Nakadaka – [3])
• IPA^(key): [pʲiːe̞ːt͡ɕi]

• (Tokyo) ピーエ​ッチ [pìíéꜜtchì] (Nakadaka – [3])
• IPA^(key): [pʲiːe̞t̚t͡ɕi]

Noun

pH(ピーエイチ) or pH(ピーエッチ) • (pīeichi or pīetchi) 

1. (chemistry) Synonym of 水素イオン指数 (suiso ion shisū, “pH”)

Etymology 2

Borrowed from German pH.

Pronunciation

• (Tokyo) ペーハ​ー [pèéháꜜà] (Nakadaka – [3])
• IPA^(key): [pe̞ːha̠ː]

Noun

pH(ペーハー) • (pēhā) 

1. (chemistry) Synonym of 水素イオン指数 (suiso ion shisū, “pH”)

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Russian

Etymology

Borrowed from Latin p and French H.

Pronunciation

• IPA^(key): [pɛ ˈaʂ]

Noun

pH n (indeclinable)

1. pH

   Synonym: водородный показатель (vodorodnyj pokazatelʹ)