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5–hydroxyindoleacetic acid

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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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