Abbreviation of phot. / Misspelling of pH. / (jargon, social media) Initialism of physical health.

a notation used in transcripts to indicate that the transcriber does not know the spelling, usually of a name, and has spelled it as it was pronounced (Initialism of phonetically.)

Initialism of public house. / Initialism of penthouse. / Initialism of preliminary hearing. / Initialism of public health. / Initialism of public holiday.

(organic chemistry) Abbreviation of phenyl.

plural of pH

(abbreiviation) United States Public Health Service

plural of PH

(chemistry) An acid-base indicator.

(chemistry) A voltmeter that uses the potential at a glass electrode to determine the pH of the solution in which it is immersed

(biochemistry) The pH that normally prevails in the human body. It is approximately 7.4.