graphitic
/ˈgræfɪtɪk/Definitions
1. adjective
relating to or resembling graphite; having a smooth, slippery, or greasy texture
“The graphitic powder was used to reduce friction in the machine.”
2. noun
a substance or material that has a smooth, slippery, or greasy texture, similar to graphite
“The graphitic coating on the surface of the boat helped it move through the water with ease.”