As nouns the difference between areometer and hydrometer
is that areometer is any device used to measure the specific gravity of liquids or the density of solids while hydrometer is an instrument that floats in a liquid and measures its specific gravity on a scale.
areometer
English
Alternative forms
*
* araeometer
Noun
(
en noun)
Any device used to measure the specific gravity of liquids or the density of solids.
Related terms
* areometry
Anagrams
*
hydrometer
Alternative forms
* hydrometre (nonstandard)
Noun
(
en noun)
An instrument that floats in a liquid and measures its specific gravity on a scale.
Derived terms
* thermohydrometer