Standard Lemma guide

uranyl

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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1

noun

Meaning 1

The divalent radical UO22+, conveniently regarded as a residue of many uranium compounds.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

the bivalent radical UO2 which forms salts with acids

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: uranyl group, uranyl radical

Antonyms: none provided

Broader terms: group, radical, chemical group

History

Etymology

Etymology tree Ancient Greek οὐρᾰνός (ourănós) Ancient Greek Οὐρᾰνός (Ourănós)der. Latin Ūranusbor. English Uranus Proto-Indo-European *-om Proto-Italic *-om Latin -umder. English -ium English uranium Proto-Indo-European *swel-der.? Ancient Greek ῡ̔́λη (hū́lē)der. Frenchder. English -yl English uranyl From uranium + -yl.

Across languages

Translations

4 source translations are retained for this English entry.

  • Chinese Mandarin: 鈾酰 /铀酰 (yóuxiān) — divalent radical UO22+
  • French: uranyle — divalent radical UO22+
  • Greek: ουρανύλιο (ouranýlio) — divalent radical UO22+
  • Italian: uranile — divalent radical UO22+