acidometer

Noun

 * 1) A hydrometer, especially one that is used to measure the strength of an acid.
 * 2) Any of various other devices used to measure acidity, either chemical or electronic.
 * 1) Any of various other devices used to measure acidity, either chemical or electronic.
 * 1) Any of various other devices used to measure acidity, either chemical or electronic.
 * 1) Any of various other devices used to measure acidity, either chemical or electronic.