What is Panzer?

Panzer meaning in German military terminology / glossary / dictionary is:
“armour”; German word is derived from Old French pancier, meaning “armour for the belly”. It can refer to a tank (see Panzerkampfwagen below) or to an armoured formation. (Panzer Division is literally “Tank Division”; the adjective for “armoured” is gepanzert.)


reference: Wikipedia: Glossary of German military terms