Glossary Term

pH

PCR TermsEN

Definition

Quantity of dimension one used to express on a scale from 0 to 14 the amount-of-substance concentration of hydrogen ion of dilute aqueous solution, calculated as the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter.

Extended Notes

Source: National Cancer Institute, NCI Thesaurus 26.09d, C45997. NCI definition, reproduced without modification under CC BY 4.0. Source identity and definition checked automatically on 2026-10-20. No individual clinical interpretation or human reviewer is asserted.

Also Known As

[pH]pHpotential of Hydrogen

References

NCI Thesaurus 26.09d — pH (C45997)
Source: National Cancer Institute, NCI Thesaurus 26.09d, C45997. NCI definition, reproduced without modification under CC BY 4.0.