actinium

Fetched 2026-10-26 (cache).

Synonyms: actinism, activism, actinic, actinide, actinia, vaccinium, actium, actinian, actiniae, clinium, achenium

Antonyms: actinism, activism, actinic, actinide, actinia, vaccinium, actium, actinian, actiniae, clinium, achenium

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{senseid|en|Q1121}}{{lb|en|chemistry}} A [[radioactive]], [[metallic]] [[chemical]] [[element]] (''symbol'': [[Ac]]) with an [[atomic number]] of 89; found in [[uranium]] [[ore]]s.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.