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Pronunciation varies by accent · noun
An aluminium block, of varying thickness, used to standardise radiographic exposures.
Use step wedge when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Step wedge means An aluminium block, of varying thickness, used to standardise radiographic exposures.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use step wedge where its definition matches the intended context.
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