phalera

[ fal-er-uh ]
/ ˈfæl ər ə /

noun, plural phal·er·ae [fal-uh-ree] /ˈfæl əˌri/.

a metal disk or boss worn on a man's breast as an ornament or as a military decoration or used to adorn the harness of a horse.

Origin of phalera

1600–10; < Latin, singular use of Greek phálara (plural) cheek-pieces