1) Gravimeter 2) Hydrometer 3) Measuring instrument 
A salinometer is a device designed to measure the salinity, or dissolved salt content, of a solution. Since the salinity affects both the electrical conductivity and the specific gravity of a solution, a salinometer often consist of an ec meter or hydrometer and some means of converting those readings to a salinity reading. A salinometer may be ca...
instrument for measuring amount of salt in a solution
• (n.) A salimeter.
device used to measure the salinity of a solution. It is frequently a hydrometer that is specially calibrated to read out the percentage of salt in a ...
an instrument for measuring the amount of salt in a solution. Also,'salimeter, salometer.'
A hydrometer so calibrated as to give a direct reading of the percentage of a particular salt present in solution. ... (05 Mar 2000) ... 
Sal`i·nom'e·ter noun [ Saline + -meter .] A salimeter. 
Type: Term Pronunciation: sal′i-nom′ĕ-tĕr Definitions: 1. A hydrometer calibrated to give a direct reading of the percentage of a particular salt present in solution.
[n] - a hydrometer that determines the concentration of salt solutions by measuring their density
salinometer Related 'measure' and 'metric' words and charts: mens-; Metric Chart of Units; Metric-Length Converter; Metric Units and Links.salinometer, salimeter, salinometric, salinometry An instrument used to measure the concentration of salt in salt solutions.
noun a hydrometer that determines the concentration of salt solutions by measuring their density