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Definition of: breastplate
Our photo definition of breastplate 
(brest′plāt′) noun
1. A piece of defensive plate armor for the breast; also, a metalworker's protective plate.
2. A strap crossing a horse's breast.
3. A square piece of linen cloth, embroidered with gold, adorned with twelve precious stones symbolizing the twelve tribes of Israel, worn by the Jewish high priest.
4. The plastron of a turtle.
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