| / English Dictionary |
PH SCALE
| Pronunciation (US): |  | (GB): | |
I. (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)
Synonyms:
pH; pH scale
Classified under:
Nouns denoting attributes of people and objects
Hypernyms ("pH scale" 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 scale"):
acidity (pH values below 7)
alkalinity (pH values above 7)
neutrality (pH value of 7)
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