The story
From formiminoglutamic acid + -ate (“salt or ester”).
Etymology from Wiktionary, CC BY-SA 4.0.
formiminoglutamate
Today it means: The conjugate base, or any salt or ester, of formiminoglutamic acid. Used as a biomarker for intracellular folate level in testing for vitamin B₁₂ deficiency, folate deficiency, and liver failure or liver disease. Full definition →