/ ˈmɒnəkrəʊm; NAmE ˈmɑːnəkroʊm/ adjective
1.
( of photographs, etc. ) using only black, white and shades of grey :
monochrome illustrations / images
( figurative )
a dull monochrome life
2.
using different shades of one colour
► mono·chro·mat·ic / ˌmɒnəkrəˈmætɪk; NAmE ˌmɑːnəkroʊˈm-/ adjective :
a monochromatic colour scheme
► mono·chrome noun [ U ]:
an artist who works in monochrome
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WORD ORIGIN
mid 17th cent.: based on Greek monokhrōmatos of a single colour.