You know what it looks like… but what is it called?
TAKE THE QUIZ“hydroxyindoleacetic acid”
We have one entry that includes the term hydroxyindoleacetic acid.
5-hydroxyindoleacetic acid
noun: a metabolite C10H9NO3 of serotonin that is present in cerebrospinal fluid and in urine —abbreviation 5-HIAA
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Merriam-Webster unabridged