monochrome
noun
[ ˈmɒnəkrəʊm ]
• a photograph or picture developed or executed in black and white or in varying tones of only one colour.
monochrome
adjective
• (of a photograph or picture, or a television screen) consisting of or displaying images in black and white or in varying tones of only one colour.
Origin:
mid 17th century: based on Greek monokhrōmatos ‘of a single colour’.