Standard Lemma guide

riboflavin

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /ˌraɪboʊˈfleɪvɪn/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -eɪvən

1

noun

Meaning 1

Yellow or orange-yellow water-soluble compound, a member of the vitamin B complex, that acts as a growth-promoting factor in humans and other animals.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: biochemistry, biology, chemistry, microbiology, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a B vitamin that prevents skin lesions and weight loss

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: vitamin B2, vitamin G, lactoflavin, ovoflavin, hepatoflavin

Antonyms: none provided

Broader terms: B-complex vitamin, B complex, vitamin B complex, vitamin B, B vitamin, B

History

Etymology

From ribo(se)- + flavin.

Across languages

Translations

20 source translations are retained for this English entry.

  • Catalan: riboflavina — the vitamin B2, riboflavin
  • Chinese Mandarin: 核黃素 /核黄素 (héhuángsù) — the vitamin B2, riboflavin
  • Esperanto: riboflavino — the vitamin B2, riboflavin
  • Estonian: riboflaviin — the vitamin B2, riboflavin
  • Finnish: riboflaviini — the vitamin B2, riboflavin
  • French: riboflavine — the vitamin B2, riboflavin
  • German: Riboflavin — the vitamin B2, riboflavin
  • Italian: riboflavina — the vitamin B2, riboflavin
  • Italian: vitamina B2 — the vitamin B2, riboflavin
  • Japanese: リボフラビン (ribofurabin) — the vitamin B2, riboflavin
  • Korean: 리보플라빈 (ribopeullabin) — the vitamin B2, riboflavin
  • Polish: ryboflawina — the vitamin B2, riboflavin
  • Portuguese: riboflavina — the vitamin B2, riboflavin
  • Romanian: riboflavină — the vitamin B2, riboflavin
  • Serbo-Croatian: рибофла̀вӣн — the vitamin B2, riboflavin
  • Serbo-Croatian: riboflàvīn — the vitamin B2, riboflavin
  • Slovak: riboflavín — the vitamin B2, riboflavin
  • Spanish: riboflavina — the vitamin B2, riboflavin
  • Swahili: riboflauini — the vitamin B2, riboflavin
  • Swedish: riboflavin — the vitamin B2, riboflavin