NIOBIUM

niobium, Nb, atomic number

(noun) a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium

Source: WordNet® 3.1


Etymology

Noun

niobium (countable and uncountable, plural niobiums)

A chemical element (symbol Nb) with an atomic number of 41: a light grey, crystalline, ductile transition metal used in superconducting materials.

(countable) A single atom of this element.

Synonyms

• columbium (in metallurgy; not in scientific use)

• dianium (obsolete)

Source: Wiktionary


Ni*o"bi*um, n. Etym: [NL., fr. L. & E. Niobe.] (Chem.)

Definition: A later name of columbium. See Columbium.

Source: Webster’s Unabridged Dictionary 1913 Edition



RESET




Word of the Day

22 December 2024

SUNGLASSES

(noun) (plural) spectacles that are darkened or polarized to protect the eyes from the glare of the sun; “he was wearing a pair of mirrored shades”


coffee icon

Coffee Trivia

Coffee has initially been a food – chewed, not sipped. Early African tribes consume coffee by grinding the berries together, adding some animal fat, and rolling the treats into tiny edible energy balls.

coffee icon