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Flavo- is a combining form used like a prefix typically meaning “yellow.” When used in biochemistry terms, flavo- means “flavin,” a pale yellow chemical compound found in a variety of biological substances, like vitamins.

Flavo- comes from Latin �ڱ��屹us, meaning “yellow” or “blonde.” The Greek equivalent of �ڱ��屹us is �油�Գٳ�ó��, “yellow.” To learn more, read our �y��vlogs That Use articles on xanth- and xantho-.

What are variants of flavo-?

When combined with words or word elements that begin with a vowel, flavo- becomes flav-, as in flavin. Want to know more? Read our �y��vlogs That Use flav- article.

One example of a scientific term that features the form flavo- is flavobacteria, “rod-shaped, anaerobic bacteria of the genus Flavobacterium.”

The form flavo- means “yellow,” while -bacteria means, well, “bacteria.” Flavobacteria literally translates to “yellow bacteria.” The name refers to the way this bacteria produces yellow pigments. Find out more at our entry for Flavobacterium.

What are some words that use the combining form flavo-?

• flavocobalt
• flavoenzyme
• flavoprotein
• flavopurpurin

What are some other forms that flavo- may be commonly confused with?

• flori-
• fluo-
• fluor-
• fluoro-
• fluvio-

Not every word that begins with the exact letters flavo-, such as flavor, is necessarily using the combining form flavo- to denote “yellow.” Learn why flavor means “taste” at our entry for the word.

The chemical compound flavoprotein was first discovered after it separated from cow’s milk. Keeping in mind the meaning flavo-, what color is this separated substance?