metal-marking crayon
nounUK /ˈmɛtəl ˈmɑːkɪŋ ˈkreɪɒn/
US /ˈmɛtəl ˈmɑːrkɪŋ ˈkreɪɑːn/
A special crayon used to write on metal.
The worker used a metal-marking crayon to write numbers on the steel pipes.
RELATED WORDS
OTHER MEANINGS
2. A waxy stick made for writing on rough or oily metal surfaces.
He grabbed a metal-marking crayon to label the oily steel plates.
3. A tool used in welding and metalwork to draw cut lines.
The welder used a metal-marking crayon to mark where to cut.
4. A colored crayon that leaves a visible line on dark metal.
A white metal-marking crayon shows up well on black iron.