Arthus' reaction

[ ahr-too-siz ]

/ ɑrˈtu sɪz /

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a severe, local immune reaction to the injection of an antigen in a sensitized host.

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On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Also called Arthus' phenomenon.

After Nicolas-Maurice Arthus (1862–1945), French physiologist, who discovered it in 1903

We haven't had any real fan reaction yet, but our collective fingers are crossed.
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Your general reaction runs along the lines of: “When will these geezers give it up and go for a mall walk or something?”
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Jundullah and Jaish ul Adl sprang up “in reaction to that kind of oppression,” he said.
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No one likes it when their sandcastle is knocked over, but his reaction is a bit, err, extreme.
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While this reaction lasted he laughed away the evidence, and honestly believed he was exaggerating trifles.
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Ordinarily the diazo appears a little earlier than the Widal reaction—about the fourth or fifth day—but it may be delayed.
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For Lettice—the tender woman of his first acquaintance—had obviously experienced a moment of reaction.
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When applied to the diagnosis of typhoid fever, the phenomenon is known as the Widal reaction.
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As yet, it is the only agglutination reaction which has any practical value for the practitioner.
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