ph

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pH^¹

Where it comes from

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 either an abbreviation of French puissance, German Potenz, Danish potens (“power”) or English potential. The H is the international chemical symbol for the element hydrogen.

noun pHs

Measure of the acidity (low pH) or basicity (high pH) of an aqueous solution, equal to the negative logarithm of the concentration of hydronium ions in molars. The water absorbency of the anionically starch-grafted AA/AM absorbent is markedly affected by the pH of the buffer solution at different ionic strengths. The charge of the ionic monomer affects the pH sensitivity of the superabsorbent polymers. An acidic superabsorbent normally ionizes at high pH b

PH^²

noun PHs

abbreviation, countable, initialism, uncountable Initialism of public house
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abbreviation, countable, initialism, uncountable Initialism of preliminary hearing
abbreviation, countable, initialism, uncountable Initialism of public health
abbreviation, countable, initialism, uncountable Initialism of physical health
abbreviation, countable, initialism, uncountable Initialism of public holiday
abbreviation, countable, initialism, uncountable Initialism of polynomial hierarchy
abbreviation, countable, initialism, uncountable Initialism of professional hydrologist
abbreviation, countable, initialism, uncountable Initialism of pommel horse
abbreviation, countable, initialism, uncountable Initialism of Purple Heart
abbreviation, countable, initialism, uncountable Initialism of porotic hyperostosis In the bibliometric survey, the overwhelming majority of stress indicator studies focused on one or more of the following: porotic hyperostosis (PH, usually in the orbital roofs but sometimes also in the cranial vault), […] Because PNB and PH are surface alterations, macroscopy is well suited for th

proper noun

abbreviation, initialism Initialism of Pakatan Harapan
abbreviation, initialism Initialism of Pornhub

ph^³

noun PH

abbreviation Abbreviation of phot
abbreviation, initialism Initialism of physical health
misspelling Misspelling of pH

adverb PH

abbreviation, initialism, not comparable Initialism of phonetically: A notation used in transcripts to indicate that the transcriber is unsure of the spelling, usually of a name, and has spelled phonetically.

Ph^⁴

noun

abbreviation, uncountable Abbreviation of phenyl

Thesaurus

Closest in meaning: ph scale, metry, population health, epidemiology, health promotion, environmental health, global health, health policy, preventive medicine, health education, health surveillance, social medicine, sanitation, disease prevention, health services, occupational health

Translations

Every language

noun Translations

Français	pH, potentiel hydrogène
Ελληνικά	πεχά pechá

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MLA

"ph." Wiktionary, via Micwyn, micwyn.com/word/ph. Accessed 6 Nov. 2026.

APA

ph. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/ph

Chicago

"ph." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/ph.

BibTeX

@misc{ph_2026,
  title = {ph},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/ph},
  urldate = {2026-11-06}
}

ph