The meaning of ORIFICE is an opening (such as a vent, mouth, or hole) through which something may pass. How to use orifice in a sentence.
Definition of orifice noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
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An orifice plate is a device used for measuring flow rate, reducing pressure or restricting flow (in the latter two cases it is often called a restriction plate). An orifice plate is a thin plate with a hole in it, which is usually placed in a pipe.
An orifice plate is a thin, flat piece of metal with a precisely machined hole in the middle. This hole, or orifice, is designed to create a pressure drop in the flow of a fluid, which can then be measured to determine the flow rate.