breastplate

noun

breast·​plate ˈbres(t)-ˌplāt 

1

: a usually metal plate worn as defensive armor for the breast see armor illustration

2

: a vestment worn in ancient times by a Jewish high priest and set with 12 gems bearing the names of the tribes of Israel

3

: a piece against which a worker's breast is pressed in operating a tool (such as a breast drill)

Examples of breastplate in a Sentence

Recent Examples on the Web

Elsewhere, prosthetics came to play a key role in the art form of drag, where performers use prosthetic breastplates and hip pads to show varying forms of femininity. —Kyle MacNeill, CNN Money, 1 Apr. 2025

In 2021, the Only Murders in the Building star made a statement at the gala in her Dior Haute Couture white trousers and matching breastplate, worn with white Dior heels. —Bailey Richards, Peoplemag, 7 May 2024

The Torah describes the details of the breastplate that the high priest, Aaron, and his sons wore. —Rabbi Ashley Englander, Sun Sentinel, 2 Apr. 2025

While there were many more outstanding teachers who made a difference in my life, the memory of Carr, and Shannon and Lewis stand out, like it’s etched on the breastplate of my heart and mind. —Bea L. Hines, Miami Herald, 14 Mar. 2025

Word History

First Known Use

14th century, in the meaning defined at sense 1

Rhymes for breastplate

• abate
• airfreight
• await
• baseplate
• berate
• birthdate
• birthrate
• bookplate
• borate
• bromate
• casemate
• castrate

Kids Definition

breastplate

noun

breast·​plate ˈbres(t)-ˌplāt 

: metal armor for covering the breast