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selenium

se·le·ni·um
S s

Transcription

    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • [si-lee-nee-uh m]
    • /sɪˈli ni əm/
    • /səˈliː.ni.əm/
    • US Pronunciation
    • US IPA
    • [si-lee-nee-uh m]
    • /sɪˈli ni əm/

Definitions of selenium word

  • noun selenium a nonmetallic element chemically resembling sulfur and tellurium, occurring in several allotropic forms, as crystalline and amorphous, and having an electrical resistance that varies under the influence of light. Symbol: Se; atomic weight: 78.96; atomic number: 34; specific gravity: (gray) 4.80 at 25°C, (red) 4.50 at 25°C. 1
  • noun selenium chemical element 1
  • noun selenium a nonmetallic element that exists in several allotropic forms. It occurs free in volcanic areas and in sulphide ores, esp pyrite. The common form is a grey crystalline solid that is photoconductive, photovoltaic, and semiconducting: used in photocells, solar cells, and in xerography. Symbol: Se; atomic no: 34; atomic wt: 78.96; valency: –2, 4, or 6; relative density: 4.79 (grey); melting pt: 221°C (grey); boiling pt: 685°C (grey) 0
  • noun selenium a nonmetallic chemical element with several allotropic forms, used in photoelectric devices because its electrical conductivity varies with the intensity of light: also used in rectifiers, in certain electrostatic copying processes, etc.: symbol, Se; at. no., 34 0
See all 4 definitions of selenium

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Parts of speech for Selenium

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Full grammatical hierarchy of Selenium

selenium popularity

A common word. It’s meaning is known to most children of preschool age. About 91% of English native speakers know the meaning and use the word.
Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

selenium usage trend in Literature

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Related words

  • selenium rectifier

    a rectifier consisting of laminated plates of metal, usually iron, that have been coated with selenium on one side, with rectification taking place because the flow of electrons from the conductive metal to the selenium occurs more readily than the flow in the opposite direction.

  • black selenium

    an allotropic form of selenium occurring as a black, amorphous, water-insoluble, light-sensitive powder: used chiefly in photoelectric cells.

  • selenium cell

    a photovoltaic cell consisting of a thin strip of selenium placed between two metal electrodes.

  • chalcogen

    any of the elements oxygen, sulphur, selenium, tellurium, or polonium, of group 6A of the periodic table

  • photonegative

    pertaining to a substance, as selenium, having a conductivity that decreases upon absorption of electromagnetic radiation.

  • ruby glass

    glass having a red color resulting from the addition of gold, copper, or selenium to the batch.
All related words to selenium

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