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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019