vanillylmandelic acid
noun
van·il·lyl·man·de·lic acid
ˌvan-ə-ˌlil-man-ˌdē-lik- 
: a principal catecholamine metabolite C9H10O5 whose presence in excess in the urine is used as a test for pheochromocytoma
—abbreviation VMA
Cite this Entry
“Vanillylmandelic acid.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/vanillylmandelic%20acid. Accessed 3 Nov. 2025.
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