pycnometer: Meaning and Definition of

pyc•nom•e•ter

Pronunciation: (pik-nom'i-tur), [key]
— n.
  1. a container used for determining the density of a liquid or powder, having a specific volume and often provided with a thermometer to indicate the temperature of the contained substance.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.