Monochrome (adjective)

1. Of a single color or hue, especially gray or black and white.
2. A picture or image that is in one color or shades of one color.

Origin:

From the greek word "monos" meaning "single" and "chroma" meaning "color".

Examples:

1. A monochrome photograph captures a scene in black and white.
2. A monochrome painting uses only one color.
3. A monochrome outfit is one that is in a single color.
4. Monochrome LCDs displays use one color, typically black.
5. Monochrome laser printers are designed to print only in black and white.