Armor plating and Visor

Armor plating noun - Specially hardened steel plate used to protect fortifications or vehicles from enemy fire.

Visor and armor plating are semantically related. In some cases you can replace term "Visor" with "Armor plating", this terms are similar.

Visor noun - A piece of armor plate (with eye slits) fixed or hinged to a medieval helmet to protect the face.

Armor plating and visor are semantically related. Sometimes you can use "Armor plating" instead a noun "Visor".