terbium.
A metallic chemical element (symbol Tb) with an atomic number of 65: a soft, silvery-white, rare earth metal that is malleable and ductile.
Meaning & usage
A metallic chemical element (symbol Tb) with an atomic number of 65: a soft, silvery-white, rare earth metal that is malleable and ductile.
A metallic chemical element (symbol Tb) with an atomic number of 65: a soft, silvery-white, rare earth metal that is malleable and ductile. An atom of this element.
Where this word comes from
Etymology tree Proto-Indo-European *úd Proto-Germanic *ūt Old Norse út Old Norse ýtrider. Swedish yttre Swedish ytter- Proto-Indo-European *bʰuH- Proto-Germanic *būaną Old Norse búa Old Norse býr Old Swedish bȳr Swedish by Swedish Ytterbybor. English Ytterby Proto-Indo-European *-om Proto-Italic *-om Latin -umder. English -ium English terbium From Ytterby + -ium, named after Ytterby, Sweden. Doublet of erbium, ytterbium, and yttrium
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.