manometer

This term refers to a specialized precision instrument used primarily in laboratory and industrial settings to determine pressure differences. It carries a technical, scientific connotation and is rarely used in casual conversation, appearing instead in engineering manuals, physics textbooks, and technical reports.

As a standard countable noun, it follows regular English pluralization rules. It is distinct from a barometer, which specifically measures atmospheric pressure, whereas a manometer is typically used for the pressure of a specific fluid or gas within a closed system.