Standard Lemma guide

racemic

adj · 1 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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  • /ɹəˈsiːmɪk/
  • US: Recorded audio is listed in the source snapshot.
  • UK: Recorded audio is listed in the source snapshot.
  • rhymes with -iːmɪk
  • rhymes with -ɛmɪk

1

adj

Meaning 1

Containing equal amounts of dextrorotatory (+) and levorotatory (−) stereoisomers and therefore not optically active.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: enantiopure, scalemic

History

Etymology

From French racémique, from Latin racēmus (“cluster or bunch of grapes”) + -ique or from raceme + -ic. The name came from racemic acid, which was isolated from grapes.

Across languages

Translations

9 source translations are retained for this English entry.

  • Catalan: racèmic — containing equal amounts of dextrorotatory and levorotatory stereoisomers
  • Dutch: racemisch — containing equal amounts of dextrorotatory and levorotatory stereoisomers
  • Finnish: raseeminen — containing equal amounts of dextrorotatory and levorotatory stereoisomers
  • French: racémique — containing equal amounts of dextrorotatory and levorotatory stereoisomers
  • German: razemisch — containing equal amounts of dextrorotatory and levorotatory stereoisomers
  • Italian: racemico — containing equal amounts of dextrorotatory and levorotatory stereoisomers
  • Portuguese: racémico — containing equal amounts of dextrorotatory and levorotatory stereoisomers
  • Romanian: racemic — containing equal amounts of dextrorotatory and levorotatory stereoisomers
  • Spanish: racémico — containing equal amounts of dextrorotatory and levorotatory stereoisomers
Real reading context

racemic in complete knowledge articles