selenium

From French sélénium, the name coined by Swedish chemist Jöns Jacob Berzelius in 1818 from Ancient Greek σελήνη (selḗnē, “moon”) in reference to original confusion with the similar element tellurium.[1]

• (UK, US) enPR: sĭlēn′ēəm, səlēn′ēəm, IPA^(key): /sɪˈliːni.əm/, /səˈliːni.əm/

• Audio (Southern England)

  (file)

• Rhymes: -iːniəm

selenium (usually uncountable, plural seleniums)

1. A nonmetallic chemical element (symbol Se) with an atomic number of 34, used mainly in glassmaking and pigments and as a semiconductor.

   Hypernym: chalcogen

   • 2019, Bill Bryson, The Body: A Guide for Occupants, Black Swan (2020), page 4:

     Pluck almost any cell from your body and it will have a million or more selenium atoms in it.

2. A single atom of this element.

• David Barthelmy (1997–2024), “Selenium”, in Webmineral Mineralogy Database.
• “selenium”, in Mindat.org‎, Hudson Institute of Mineralogy, 2000–2024.

• selenium on Wikipedia.Wikipedia

• Melusine, emulsine, semilune, seminule

• Audio

  (file)

selenium (uncountable)

1. Synonym of seleen (“selenium”)

• IPA^(key): [ˈsɛlɛːnɪjum]
• Hyphenation: se‧le‧nium

selenium n

1. Alternative form of selen

Lua error in Module:utilities at line 142: attempt to perform arithmetic on local 'h' (a nil value)

• selenium in Kartotéka Novočeského lexikálního archivu
• selenium in Internetová jazyková příručka

Borrowed from Lua error in Module:utilities at line 142: attempt to perform arithmetic on local 'h' (a nil value), a word coined by Swedish chemist Berzelius in 1818, from Ancient Greek Σελήνη (Selḗnē, “moon”).[1]

• IPA^(key): /səˈleː.ni.ʏm/, /seːˈleː.ni.ʏm/

• Audio

  (file)

• Hyphenation: se‧le‧ni‧um

selenium n (uncountable)

1. Lua error in Module:utilities at line 142: attempt to perform arithmetic on local 'h' (a nil value) [from 1818]

   Synonym: seleen

From Ancient Greek Σελήνη (Selḗnē, “moon”) + -ium.

• (Classical) IPA^(key): /seˈleː.ni.um/, [s̠ɛˈɫ̪eːniʊ̃ˑ]
• (modern Italianate Ecclesiastical) IPA^(key): /seˈle.ni.um/, [seˈlɛːnium]

selēnium n (genitive selēniī); second declension

1. (New Latin) selenium

Lua error in Module:utilities at line 142: attempt to perform arithmetic on local 'h' (a nil value)

From Lua error in Module:utilities at line 142: attempt to perform arithmetic on local 'h' (a nil value), from New Latin, from Ancient Greek Σελήνη (Selḗnē).

• IPA^(key): [selɛniom]
• Rhymes: -iom, -jom, -om

selenium

1. selenium (chemical element)

selenium n (uncountable)

1. Alternative form of seleniu