Wiktionary
n. a type of felt-tip pen used to create permanent water-resistant writing on a surface such as a writable DVD
Wikipedia
A permanent marker or indelible marker is a type of marker pen that is used to create permanent writing on an object. In general, the ink comprises a main carrier solvent, a glyceride, a pyrrolidone, a resin and a colorant, making it waterproof. It is capable of writing on a variety of surfaces from paper to metal to stone. They come in a variety of tip sizes (ultra fine to wide), shapes (chisel point, bullet tip, and wide bristle), and colors (metallic, or ultraviolet reactive). Like spray paint, these markers contain volatile organic compounds which evaporate to dry the ink. Permanent marker is another name for "waterproof" marker.
The permanent marker was invented in 1952 by Sidney Rosenthal.
Usage examples of "permanent marker".
The canteen had masking tape on the lid, and block letters in permanent marker identified it as holy water.
The paper tag on the door from the hall read DOE, JANE in big, permanent marker letters that were faded with age.
To comply with the law, I have to actually set foot on the piece I intend to buy, and place some permanent marker, fully identifiable, in an exposed spot.
Her lips and eyelids had been painted in black and there was a symbol painted on her right cheek in what appeared to be permanent marker.
The moon was high in the sky and he could see a name printed on the cover in bold permanent marker: JEFFERSON PARDEE.