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Discover LudwigThe phrase "an rigid" is not correct in written English.
The correct article to use before "rigid" is "a" because "rigid" begins with a consonant sound.
Example: "He has a rigid approach to problem-solving that doesn't allow for flexibility."
Alternatives: "a strict" or "a firm".
Exact(1)
Endoscopic examinations (with a rigid endoscope) of the occlusal surfaces might aid in detecting occlusal pitting and dental fractures Prior to dental treatment, an rigid endoscope seems to be an appropriate tool for a thorough examination, especially of the caudal CT, that could detect a possible incomplete pulp coverage [ 2].
Similar(59)
As he put it, "The only thing worse than a society with a rigid, overcentralized, dishonest bureaucracy is one with a rigid, overcentralized, honest bureaucracy".
Treated as a rigid body, a ship partakes of six oscillatory motions in a seaway.
A conventional FRO is a rigid type of AFO, and includes a ventral shell and a rigid footplate.
It is really a fix to a rigid solution.
A pipe-in-pipe system comprises a rigid steel flowline inside a rigid sleeve pipe.
A lacrosse stick is a rigid slingshot.
Progress is a flexible concept, not a rigid doctrine.
As a second example, consider a rigid body in space.
I work in a conservative field with a rigid hierarchy.
Joint system at nodes is a rigid or almost a rigid connection.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com