an instrument for determining the weight, density, etc., of air or other gases.
an instrument for determining the mass or density of a gas, esp air
of or . Contemporary Examples Who has access to the tarmac side of our airports and other aeronautical facilities? Who’s Minding the Planes? Airlines’ Overlooked Security Risk William J. McGee July 20, 2012 Historical Examples Hence a definite branch of applied science—aeronautical Meteorology—is rapidly taking shape. Meteorology Charles Fitzhugh Talman Baumann was already noted for […]
- Aeronautical engineering
See under . the branch of engineering that deals with the design, development, testing, and production of aircraft and related systems (aeronautical engineering) and of spacecraft, missiles, rocket-propulsion systems, and other equipment operating beyond the earth’s atmosphere (astronautical engineering) Historical Examples aeronautical engineering has become one of the recognized professions. Meteorology Charles Fitzhugh Talman The […]
the indefinite boundary in the upper atmosphere beyond which the air is too thin for conventional aircraft to operate. noun the region of the upper atmosphere above which aircraft cannot fly
the study or collection of airmail stamps, cancellations, etc.