A container used for finding the relative density of a liquid by measuring its weight when filled with the liquid and comparing it with the weight when filled with water.
Origin
Mid 19th century; earliest use found in John Thudichum (1829–1901), physician and chemist. From pycno- + -meter.
Definition of pycnometer in US English:
pycnometer
(also pyknometer)
nounpɪkˈnɒmɪtə
A container used for finding the relative density of a liquid by measuring its weight when filled with the liquid and comparing it with the weight when filled with water.
Origin
Mid 19th century; earliest use found in John Thudichum (1829–1901), physician and chemist. From pycno- + -meter.