rubbing crayon
nounUK /ˈrʌbɪŋ ˈkreɪɒn/
US /ˈrʌbɪŋ ˈkreɪɑːn/
A rubbing crayon is a soft, waxy crayon you use to make pictures by rubbing it over paper on top of something bumpy.
She used a rubbing crayon to copy the pattern of a leaf onto her paper.
OTHER MEANINGS
2. A crayon used in art class for making frottage pictures.
The art teacher handed out rubbing crayons for the frottage project.
3. A soft crayon that shows the raised pattern of coins or leaves.
He pressed a coin under the paper and colored it with a rubbing crayon.
4. A thick crayon made for rubbing, not for drawing lines.
Unlike a drawing crayon, a rubbing crayon is held flat against the paper.