Standard Lemma guide

prednisone

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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • prĕdʹnĭ-sōn'
  • prĕdʹnĭ-zōn'
  • Received-Pronunciation: /ˈpɹɛd.nɪ.zəʊn/
  • General-American: /ˈpɹɛd.nɪˌsoʊn/

1

noun

Meaning 1

A glucocorticoid C21H26O5 that is a dehydrogenated analog of cortisone, used to relieve rheumatic and allergic conditions and to treat leukemia.

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 dehydrogenated analogue of cortisol (trade names Orasone or Deltasone or Liquid Pred or Meticorten); used as an anti-inflammatory drug in the treatment of arthritis and as an immunosuppressant

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Orasone, Deltasone, Liquid Pred, Meticorten

Antonyms: none provided

Broader terms: anti-inflammatory, anti-inflammatory drug, glucocorticoid

History

Etymology

Etymology tree Latin praegnāns Proto-Indo-European *-nós Proto-Italic *-nos Latin -nus Latin -ānusder. English -ane English pre(gnane) Proto-Indo-European *dwóh1 Proto-Indo-European *dwi- Proto-Hellenic *dwi- Ancient Greek δῐ- (dĭ-)bor. Latin di-bor. English di- French -ènebor. English -ene English d(ie)ne Proto-Indo-European *(s)ker- Proto-Indo-European *(s)kert- Proto-Indo-European *(s)kort-ek-sder. Latin cortexder. English cortico- Proto-Indo-European *ǵhelh3- Proto-Hellenic *kholā́ Ancient Greek χολή (kholḗ) Proto-Indo-European *ster-der. Ancient Greek στερεός (stereós) French cholestérine French cholestérolbor. English cholesterol English sterol German Ketonbor. English ketone English -one English -sterone English corticosterone English (cort)isone English prednisone From pre(gnane) + d(ie)ne + (cort)isone.

Across languages

Translations

5 source translations are retained for this English entry.

  • Czech: prednison — Translations
  • Czech: prednizon — Translations
  • Finnish: prednisoni — Translations
  • Portuguese: prednisona — Translations
  • Turkish: prednizon — Translations