1. potassium-argon_dating

noun. geological dating that relies on the proportions of radioactive potassium in a rock sample and its decay product, argon.


  • geological dating

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Rhymes with Potassium Cyanide

Sentences with potassium-cyanide

1. Noun Phrase
Add a strong solution of potassium cyanide until the blue color disappears.

2. Noun Phrase
Add 1/4 as much potassium cyanide as you used above.

3. Noun Phrase
Add potassium cyanide to the solution.

4. Noun Phrase
Add more potassium cyanide until all of the crystals are dissolved and no more appear.

2. potassium

noun. ['pəˈtæsiːəm'] a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite.


  • brine
  • metallic element
  • sylvite
  • seawater
  • atomic number 19
  • sylvine
  • K
  • saltwater
  • carnallite
  • kainite
  • metal


  • nonmetallic

3. cyanide

noun. ['ˈsaɪəˌnaɪd, ˈsaɪˌnaɪd'] any of a class of organic compounds containing the cyano radical -CN.


  • propenonitrile
  • organic compound
  • nitrile
  • vinyl cyanide
  • acrylonitrile


  • -ide (English)
  • cyano- (English)
  • κυάνεος (Ancient Greek (to 1453))

4. cyanide

noun. ['ˈsaɪəˌnaɪd, ˈsaɪˌnaɪd'] an extremely poisonous salt of hydrocyanic acid.


  • sodium cyanide
  • salt


  • -ide (English)
  • cyano- (English)
  • κυάνεος (Ancient Greek (to 1453))