pencil drawing; pencil sketch
Refers to a drawing or sketch made with a pencil, as opposed to other media like ink or paint.
She is very good at pencil drawing.
I drew a pencil sketch in art class.
デッサン often implies a more formal or academic drawing study, typically in monochrome, and can include charcoal or conte, whereas 鉛筆画 is explicitly a pencil drawing.
Compound of 鉛筆 (pencil) and 画 (picture, drawing).