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View synonyms for scratch test

scratch test

noun

  1. a test for a suspected allergy in which the skin is scratched and an allergen applied to the area, redness indicating a positive reaction.



scratch test

noun

  1. med a skin test to determine allergic sensitivity to various substances by placing the allergen to be tested over an area of lightly scratched skin. A positive reaction is typically indicated by the formation of a weal

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of scratch test1

First recorded in 1935–40
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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For pieces of unknown purity, she performed a quick scratch test using an acid kit to help determine the metal’s karat composition.

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“I went to see the allergist. Got the scratch test,” he reported.

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An iodine-based scratch test or spectral analysis of leaves could indicate the presence of little cherry disease before it is exhibited in the fruit, Galimba said.

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Wahlberg, 49, captioned the photo following an allergy scratch test while donning a mask at a doctor's office.

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Dejneka nods, saying he had the same experience with that sample, and eagerly points to the exact spot on the counter where he did his scratch test last year.

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scratch someone's backscratch the surface