manganese

• Élément métallique gris, dur et cassant, polyvalent, semblable au fer mais non magnétique ; utilisé dans la fabrication de l'acier et présent dans de nombreux minéraux.

A hard, brittle, grey metallic element that is polyvalent and resembles iron but is not magnetic; it is used in making steel and occurs in many minerals.

indénombrable

1. Metallic elementB2formalscientific

   A hard, brittle, gray-white metal that resembles iron but is not magnetic. It is used in making steel and various alloys.

   Manganèse

   • Manganese is essential for the production of high-strength steel.
   • The ore contains significant quantities of manganese.
   • Adding manganese improves the hardness of aluminum alloys.

2. Essential trace mineralC1formalmedical

   A nutrient that the human body needs in small amounts for bone formation, blood clotting, and metabolism.

   Manganèse (oligo-élément)

   • Manganese is found in nuts, whole grains, and leafy greens.
   • A deficiency of manganese can affect growth and reproduction.
   • The recommended daily intake of manganese is about 2 mg for adults.