Definition of aeruginous in English:

aeruginous

(also aerugineous)

adjective

Botany Medicine
  • Of the nature or colour of verdigris; containing or characterized by basic copper carbonate; bluish-green.

Origin

Late Middle English; earliest use found in Guy de Chauliac's Grande Chirurgie. From Anglo-Norman and Middle French erugineux, French érugineux (of bile or other bodily humours) of the colour of verdigris, covered with verdigris, of a colour similar to verdigris and its etymon classical Latin aerūginōsus rusty, in post-classical Latin also of a rusty colour from aerūgin-, aerūgō + -ōsus.

Pronunciation:

aeruginous

/ɪəˈruːdʒɪnəs/