oxonium
nounUK /ɒkˈsəʊnɪ.əm/
Etymology From ox- + -onium.
1
Chemistry, Inorganic chemistry, Natural sciences, Physical sciences Any univalent oxygen cation derived from water, the simplest of which is the hydronium ion (H₃O⁺).
- Derived terms
- alkyloxonium, hydroxonium, oxonium ion, phenoxonium