Dictionary

reagin

noun re·agin \rē-ˈā-jən, -gən\

Definition of REAGIN

1
:  a substance in the blood of persons with syphilis responsible for positive serological reactions for syphilis
2
:  an antibody (as IgE in humans) that mediates hypersensitive allergic reactions of rapid onset
re·agin·ic \ˌrē-ə-ˈji-nik, -ˈgi-\ adjective

Origin of REAGIN

International Scientific Vocabulary, from reagent
First Known Use: circa 1911

Rhymes with REAGIN

Medical Dictionary

reagin

noun re·agin \rē-ˈā-jən, -gən\

Medical Definition of REAGIN

1
:  a substance that is in the blood of individuals with syphilis and is responsible for positive serological reactions for syphilis
2
:  an antibody (as IgE in humans) that mediates hypersensitive allergic reactions of rapid onset
re·agin·ic \ˌrē-ə-ˈjin-ik, -ˈgin-\ adjective

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