Standard Lemma guide

hahnium

noun · 3 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

A rejected name for dubnium.

Definition source: English Wiktionary via Wiktextract

Usage: obsolete, 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

A rejected name for hassium.

Definition source: English Wiktionary via Wiktextract

Usage: obsolete, uncountable

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

a transuranic element

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: dubnium, Db, element 105, atomic number 105

Antonyms: none provided

Broader terms: chemical element, element

History

Etymology

Named after German chemist Otto Hahn (1879–1968), formed as Hahn + -ium.