1) Atmospheric pressure measurer 2) Barometer 3) Barometer type 4) Kind of barometer 5) Not using liquid 6) Type of barometer 7) Using no fluid 
• (a.) Containing no liquid; -- said of a kind of barometer. • (n.) An aneroid barometer.
Containing no liquid; said of kind of barometer. Aneroid barometer, a barometer the action of which depends on the varying pressure of the atmosphere upon the elastic top of a metallic box (shaped like a watch) from which the air has been exhausted. An index shows the variation of pressure. ... Origin: Gr. Priv. + wet, moist: cf. F. Aneroide. ... S...
An'e·roid adjective [ Greek An'e·roid noun An aneroid barometer. 
Type: Term Pronunciation: an′er-oyd Definitions: 1. Without fluid; denoting a form of barometer without mercury, in which the varying air pressure is indicated by a pointer governed by the movement of the elastic wall of an evacuated chamber. Also used to denote a mercury-free pressure gauge used with some sphygmomanometers. &...
[adj] - containing no liquid or actuated without the use of liquid
aneroid Without fluid.
adjective containing no liquid or actuated without the use of liquid; `aneroid barometer`
using no fluid.