That's just circular : it's a self description.
Esophageal, duodenal, urethral, and anal would all seem to fit that description.
Short answer:A vacuum is actually a description of very low pressure.Long answer:This question really depends on the case. For this answer I'll be referring to an air cylinder like in a paintball gun or so on. Air pressure is the pressure or force a gas exerts on an object. For example atmospheric air pressure is the weight of all the air in the atmosphere above you pushing down on you. Or in the case of a cylinder pressure is the force of the molecules and atoms of air bumping into the wall of the cylinder. the more collisions with the walls the higher the pressure. Adding more air means more atoms to bump around and more pressure. As you start to remove the atoms and molecules from the cylinder there are less and less to bump into the walls. Thus lowering the pressure of the cyclical. A vacuum is reached when there are little to no more molecules or atoms bouncing around inside the tube. Therefore a vacuum is actually a description of very low pressure.
Fog description is description of fog.
typically involving compressed air or gases, an example being compressed air lines that power air ratchets
The best or most common description for systolic pressure would be that its related to your blood pressure. If you have systolic blood pressure it could mean that your blood vessels are clogged up.
That sounds like the description of voltage. It isn't really a pressure, but you can compare voltage to pressure (in the water analogy).
fair weather
The unit of measure of electrical pressure is the VOLTS.
It can affect your blood cells but by description it does not directly cause high blood pressure. Reactions to this prescription may vary.
That's just circular : it's a self description.
operation of machinery and equipment by a fluid that is under pressure, two examples being masts that raise elevator platforms or forks on a lift truck
Ice is frozen water, water in its solid state.
Esophageal, duodenal, urethral, and anal would all seem to fit that description.
If you are referring to the blinking orange dashboard warning light - from your description(?) it sounds like it might the tire low pressure alarm.
The condition keeps the rest of the body from getting the necessary supply of oxygen and can cause dangerously low blood pressure.
There is no specific "weather" description near isobars. Isobars are simply lines joining points of similar atmospheric pressure to indicate current and project future weather patterns related to pressure and therefore wind (movement of high pressure to low pressure). Therefore, a combination of the pressure the Isobar is indicating combined with other factors will determine the actual weather at that location.