(redirected from Inches of mercury)
Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia.

INCH. From the Latin uncia. A measure of length, containing one-twelfth part of a foot.

References in periodicals archive ?
Nothing says the adjustable altimeter must use inches of mercury.
The ability to select units of pounds per square inch, bar, inches of water, feet of water, millibar, inches of mercury, meters of water and kilograms per square centimeter.
If you're cleaning liquid waste only--sludge for example--it requires a relatively small cfm number but high pressure as measured in inches of mercury, say 25 to 26 inches.