Definition of manganomelane in English:

manganomelane

noun

Mineralogy
  • Any of a group of manganese oxide minerals including psilomelane, especially those with a hard texture.

Origin

1930s. From mangano- + -melane, after German Manganomelan.

Pronunciation

manganomelane

/ˌmaŋɡəˈnɒməleɪn/