selenium

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arsenic 34 bromine

Pronunciation[change]

  • (UK) (US) enPR: sĭlēn'ēəm or sĭlēn'ēəm, IPA (key): /sɪˈliː.ni.əm/ or /səˈliː.ni.əm/
  • (file)

Noun[change]

Singular
selenium

Plural
none

  1. (uncountable) Selenium is a nonmetallic (meaning not made of metal) element with an atomic number of 34 and symbol Se.