line art

Noun

 * 1) Images that consist of distinct straight and curved lines placed against a (usually plain) background, without gradations in shade (darkness) or hue (color).
 * 2)  Artwork to be reproduced with one solid colour, contrasted with artwork having tone or shading (halftones), or full colour (colour separations).
 * 3) The outlines of a drawing as opposed to color, shading, and texture.

Translations

 * Chinese:
 * Mandarin: 線稿
 * Finnish: viivapiirros
 * Russian: штрихово́й рису́нок