Standard Lemma guide

warfarin

noun · 4 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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  • Received-Pronunciation: /ˈwɔː.fə.ɹɪn/
  • General-American: /ˈwɔɹ.fəɹ.ɪn/

1

noun

Meaning 1

A coumarin salt, warfarin sodium, found in certain clovers, that retards blood coagulation

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A coumarin salt, warfarin sodium, found in certain clovers, that retards blood coagulation:

Manufactured as a pharmaceutical drug and used in low dosage, with regular monitoring, for the prevention of thrombosis and embolism.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A coumarin salt, warfarin sodium, found in certain clovers, that retards blood coagulation:

Manufactured as a chemical, used in high dosage as a pesticide.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

an anticoagulant (trade name Coumadin) use to prevent and treat a thrombus or embolus

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Coumadin

Antonyms: none provided

Broader terms: anticoagulant, anticoagulant medication, decoagulant

History

Etymology

From Wisconsin Alumni Research Foundation + (coum)arin.

Across languages

Translations

9 source translations are retained for this English entry.

  • Chinese Mandarin: 華法林 /华法林 (huáfǎlín) — anticoagulant
  • Finnish: varfariini — anticoagulant
  • Japanese: ワルファリン (warufarin) — anticoagulant
  • Korean: 와파린 (waparin) — anticoagulant
  • Polish: warfaryna — anticoagulant
  • Portuguese: varfarina — anticoagulant
  • Portuguese: warfarina — anticoagulant
  • Spanish: warfarina — anticoagulant
  • Swedish: warfarin — anticoagulant