noun Chemistry.
a yellow coloring substance, C 15 H 10 O 6 , obtained from the weed Reseda luteola: used in dyeing silk and, formerly, in medicine.

1835–45; < Neo-Latin (Reseda) luteol(a), special use of feminine of Latin lūteolus yellowish (diminutive of lūteus yellow; see luteous) + -in2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
luteolin (ˈluːtɪəlɪn)
a yellow crystalline compound found, in the form of its glycoside, in many plants. Formula: C15H10O6
[C19: via French from New Latin reseda lūteola, dyer's rocket, from which this substance is obtained; lūteola from Latin lūteus yellow]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
Luteolin is already known to have anti-inflammatory properties.
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