Definition of monochromous in US English:

monochromous

adjective

  • Having only one colour; = "monochrome".

Origin

Mid 19th century; earliest use found in Robert Mayne (1808–1868). From monochrome + -ous.

Pronunciation

monochromous

/ˌmɒnə(ʊ)ˈkrəʊməs/