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“panhydrometers”
A water meter that can be used to measure the relative density of any liquid.
This entry is located in the following units:
hydro-, hydra-, hydr-, hyd-
(page 15)
meter-, metro-, metr-, -metrical, -metrically, -metron, -metric, -metrist, -meter, -meters, -metry, -metre
(page 29)
pan-, panto-, pant-
(page 3)