TERBIUM

terbium, Tb, atomic number

(noun) a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite

Source: WordNet® 3.1


Etymology

Noun

terbium (uncountable)

A metallic chemical element (symbol Tb) with an atomic number of 65: a soft, silvery-white, rare earth metal that is malleable and ductile.

Anagrams

• imbrute

Source: Wiktionary


Ter"bi*um, n. Etym: [NL., fr. Ytterby, in Sweden. See Erbium.] (Chem.)

Definition: A rare metallic element, of uncertain identification, supposed to exist in certain minerals, as gadolinite and samarskite, with other rare ytterbium earth. Symbol Tr or Tb. Atomic weight 150.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

23 May 2025

THOUGHTFULLY

(adverb) showing consideration and thoughtfulness; “he had thoughtfully brought with him some food to share”


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