Aneroid
not containing any liquid; used chiefly in the expression, "aneroid barometer."
An aneroid barometer is a barometer not containing a liquid, but constructed on at totally different principle from a mercurial barometer. Various forms of the instrument exist. One of these consists of a cylindrical metal box exhausted of air, and having its lid of thin corrugated metal. As the pressure increases, the lid which is highly elastic, and has a spring inside, is forced inward; while, ward. Delicate multiplying levers then again, as it diminishes, it is forced outtransmit these motions to an index which moves on a scale, and is graduated empirically by a mercurial barometer. From its portability it is much used for determining the heights of mountains. ANEURIN (an-ū'rin), a poet and prince of the Cambrian Britons, who flourished about 600 A. D., author of an ANGELES epic poem, the "Gododin," relating the defeat of the Britons of Strathclyde by the Saxons at the battle of Cattraeth.