PH

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 Dictionary entry overview: What does pH mean? 

• PH (noun)
  The noun PH has 1 sense:

1. (from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is more basic and less than 7 is more acidic)

  Familiarity information: PH used as a noun is very rare.

 Dictionary entry details 

• PH (noun)

Sense 1

Meaning:

(from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is more basic and less than 7 is more acidic)

Classified under:

Nouns denoting attributes of people and objects

Synonyms:

pH; pH scale

Hypernyms ("pH" is a kind of...):

hydrogen ion concentration (the number of moles of hydrogen ions per cubic decimeter)

Domain category:

chemical science; chemistry (the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions)

Hyponyms (each of the following is a kind of "pH"):

acidity (pH values below 7)

alkalinity (pH values above 7)

neutrality (pH value of 7)

 Context examples 

This allele, which encodes carbonic anhydrase 9 protein, plays a role in intracellular pH balance.

(CA9 wt Allele, NCI Thesaurus)

This protein is involved in intracellular pH balance and may be involved in cell proliferation and transformation.

(Carbonic Anhydrase 9, NCI Thesaurus)

It can be in acid or base form, depending on the pH of the solution.

(Bromthymol Blue, NCI Thesaurus)

On this scale, a pH value of 7 is neutral, and a pH value of more than 7 to 14 shows increasing basicity.

(Base, NCI Dictionary)

C. tyrobutyricum is present in milk and causes late-blowing defect in cheeses with high pH leading to product loss.

(Clostridium tyrobutyricum, NCI Thesaurus)

It is water-soluble at pH less than 4 and lipid-soluble at physiological pH.

(Midazolam hydrochloride, NLM, Medical Subject Headings)

In medicine, having the right pH in the blood and other body fluids is important for the body to work the way it should.

(pH, NCI Dictionary)

An organic compound used as a laboratory reagent and pH indicator.

(Phenolphthalein, NCI Thesaurus)

A selective cytochemical monocyte marker for alpha-naphthyl butyrate at pH 6.1.

(Alpha-naphthyl Butyrate Esterase, NCI Thesaurus)

The ability of antibacterial clays to buffer pH also appears key to their healing potential and viability as alternatives to conventional antibiotics.

(New answer to MRSA, other 'superbug' infections: clay minerals?, NSF)