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Onium vs Opium - What's the difference?

onium | opium |

As nouns the difference between onium and opium

is that onium is any cation derived by the addition of a proton to the hydride of any element of the nitrogen, chalcogen or halogen families while opium is a yellow-brown, addictive narcotic drug obtained from the dried juice of unripe pods of the opium poppy, Papaver somniferum, and containing alkaloids such as morphine, codeine, and papaverine.

onium

English

Noun

(onium compound) (en noun)
  • (chemistry) any cation derived by the addition of a proton to the hydride of any element of the nitrogen, chalcogen or halogen families
  • (chemistry) any organic derivative of these compounds

    • See also

    *ammonium *arsonium *bismuthonium *bromonium *chloronium *fluoronium *iodonium *oxonium *phosphonium *selenonium *stibonium *sulfonium / sulphonium *telluronium

    Noun

    (onium) (onia)
  • (physics) the bound pair of a particle and its antiparticle

    • Derived terms

    * -onium, suffix of onia

    Related terms

    * positronium * muononium * tauonium * toponium

    opium

    English

    (wikipedia opium)

    Noun

  • (uncountable) A yellow-brown, addictive narcotic drug obtained from the dried juice of unripe pods of the opium poppy, Papaver somniferum , and containing alkaloids such as morphine, codeine, and papaverine.
  • (countable) Anything that numbs or stupefies.
  • * "Religion is the sigh of the oppressed creature, . . . It is the opium of the people." -

    • Synonyms

    * See also