lanthanum

Fetched 2026-10-26 (cache).

Synonyms: lantanum, lanthanium, lanthanon, lantanium, lanthana, lanthanic

Antonyms: lantanum, lanthanium, lanthanon, lantanium, lanthana, lanthanic

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{senseid|en|Q1801}}{{lb|en|uncountable}} A chemical [[element]] (''symbol'' La) with an [[atomic number]] of 57: a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air.
2. {{lb|en|countable}} An [[atom]] of this element.

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