You searched for: “aerometers”
aerometer (s) (noun), aerometers (pl)
An instrument for weighing air or for estimating the density of gas: An aerometer is especially valuable for determining the weight or denseness, or compactness, of air.
This entry is located in the following units: aero-, aer-, aeri- (page 6) meter-, metro-, metr-, -metrical, -metrically, -metron, -metric, -metrist, -meter, -meters, -metry, -metre (page 1)