Impasto

[Sarah]

The thickness of the layer or body of pigment applied by thepainter to his canvas with especial reference to the juxtaposition ofdifferent colors and tints in forming a harmonious whole. Fairholt.

[Sarah]

ɪmˈpastəʊ/
noun [ART]
A painting technique of laying on paint thickly so that it stands out from a surface