Impasto
/ɪmˈpæstəʊ/
Definition 1 of 2
Pro Tip 1/3Art Technique
Understand 'impasto' as a method artists use to add texture and depth to paintings. 
She admired the impasto, feeling the ridges formed by the painter's knife.
Pro Tip 2/3Visible Strokes
'Impasto' means you can often see the tool marks left on the painting, like brushstrokes. 
The impasto created a sense of movement with the visible brush strokes.
Pro Tip 3/3Thick Application
The paint is applied very thickly in 'impasto', sometimes straight from the tube. 
In his impasto work, the artist's thick use of paint gave a 3D effect.