(medicine) The quantitative assessment of a person's hearing ability, especially by means of an audiometer.
chytridium
delthyrium
delthyrium
noun
(zoology) The opening between the beak and the hinge in certain brachiopods, through which the pedicle passes.
eudiometry
eudiometry
noun
(chemistry, now chiefly historical) The art or process of determining the constituents of a gaseous mixture by means of the eudiometer, or for ascertaining the purity of the air or the amount of oxygen in it.