noun Date: 1663 the use of marking made within outlines to suggest three-dimensionality, shadow, or degrees of light and dark in a picture or drawing, an interpretative effect in music gained especially by subtle changes in dynamics
SHADING
Meaning of SHADING in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012