Definition of pièce noire in US English:

pièce noire

(also piece noir, piece noire)

noun

  • A play or film with a sombre or macabre theme.

Origin

1950s; earliest use found in The Times. From French pièce noire from pièce + noire, feminine of noir black, especially as used by the playwright Jean Anouilh to categorize his works.

Pronunciation

pièce noire

/piːˌɛs ˈnwɑː/