1a large piece of metal or leather carried by soldiers in the past to protect the body when fighting2 = riot shield3a person or thing used to protect somebody/something, especially by forming a barrierThe gunman used the hostages as a human shield.Water is not an effective shield against the sun's more harmful rays.She hid her true feelings behind a shield of cold indifference.4a plate or screen that protects a machine or the person using it from damage or injuryA heat shield protects the worker's hands.5an object in the shape of a shield, given as a prize in a sports competition, etc.6a drawing or model of a shield showing a coat of arms7(North American English) a police officer's badge
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