Definition of achromous in English:

achromous

adjective

rare
  • Uncoloured; colourless.

Origin

Late 19th century. From post-classical Latin achromos or its etymon ancient Greek ἄχρωμος colourless + -ous. Compare earlier achromatous, and also achromatistous and achroous.

Pronunciation:

achromous

/eɪˈkrəʊməs/