A surname from Irish.

(chemistry) Any compound containing the ion MnO₄²⁻.

(chemistry) Containing manganese in its higher oxidation states.

(mineralogy) containing manganese

plural of manganate

(medicine) Manganese poisoning, a toxic condition resulting from chronic exposure to manganese.

(chemistry) Containing manganese in its +2 oxidation state.

plural of Mangan

(chemistry) An acid, H₂MnO₄, formed from manganese, analogous to sulfuric acid.

(uncountable) A metallic chemical element (symbol Mn) with an atomic number of 25, not a free element in nature but often found in minerals in combination with iron, and useful in industrial alloy production.