pH
Bounded definition
A logarithmic measure related to hydrogen-ion activity.
Do not infer more: Record the method, time and temperature; one reading does not establish the daily range or buffering capacity.
Wording people may use
acidity, hydrogen ion activity.
Use the term in context
Continue with parameter guide, measurement-quality guide. The glossary standardizes wording; the linked guide carries the practical method, evidence and decision boundary.
Editorial definition reviewed 2026-08-12. It adds no diagnosis, universal care target or new biological evidence. Challenge this wording or provide a source.