n.1. A black, porous, carbonaceous material, 85 to 98 percent carbon, produced by the destructive distillation of wood and used as a fuel, filter, and adsorbent.
2. a. A drawing pencil or crayon made from this material.
b. A drawing executed with such a pencil or crayon.
3. A dark grayish brown to black or dark purplish gray.
tr.v. char·coaled,
char·coal·ing,
char·coals 1. To draw, write, or blacken with a black, carbonaceous material.
2. To charbroil.