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5-hydroxyindoleacetic acid

noun 5-hy·droxy·in·dole·ace·tic acid \ ˈfīv-hī-ˌdräk-sē-ˌin-(ˌ)dōl-ə-ˌsēt-ik- \

medical Definition of 5-hydroxyindoleacetic acid

: a metabolite C₁₀H₉NO₃ of serotonin that is present in cerebrospinal fluid and in urine —abbreviation 5-HIAA

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