Share this entry

Share this page

tantalum

Syllabification: tan·ta·lum
Pronunciation: /ˈtan(t)ləm
 
/

Definition of tantalum in English:

noun

The chemical element of atomic number 73, a hard silver-gray metal of the transition series. (Symbol: Ta)
Example sentences
  • Magnesium, titanium, zirconium, niobium, tantalum, molybdenum and tungsten may be soldered if they are plated with a solderable metal coating such as silver.
  • Many rare but technologically important elements, such as tantalum and uranium, continue to be mined from poor regions of the world under conditions that some consider pernicious and hazardous.
  • A second element, tantalum, is always present in these minerals along with niobium.

Origin

early 19th century: from Tantalus, with reference to its frustrating insolubility in acids.

Derivatives

tantalic

1
Pronunciation: /tanˈtalik/
adjective
Example sentences
  • The catalyst has a support of niobic acid, tantalic acid or a mixture of niobic acid and tantalic acid or a support containing such acids.
  • The experimental results have shown proposed constructive solutions to accomplish electron-ion powder heating with following particles deformation at a tantalic target.
  • Tantalum is etched by peroxide - the same way it etches tungsten or titanium - by forming its mineral acid, in this case tantalic acid.

Words that rhyme with tantalum

Absalom • Jerusalem

Definition of tantalum in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day resilient
Pronunciation: rɪˈzɪlɪənt
adjective
able to recoil or spring back into shape…