Definitions

1. noun

A defensive structure or device, especially in medieval warfare, protecting the head and upper body of an archer or other soldier.

“The medieval knight used a mantlet to shield himself from enemy arrows.”

2. noun

A type of shield or covering used by a medieval archer.

“The archer protected his face with a leather mantlet during battle.”

3. noun

A protective covering or device, especially for a machine or engine.

“The engineer designed a mantlet to protect the engine from debris.”