1. A narrow, generally cylindrical implement for writing, drawing, or marking, consisting of a thin rod of graphite, colored wax, or similar substance encased in wood or held in a mechanical holder. 2. an eyebrow pencil. 3. A style or technique in drawing or delineating. 4. Henry Hallam 5. An artist's brush, especially a fine one. 6. A beam of radiant energy in the form of a narrow cone or cylinder. 7. A family of geometric objects, such as lines, that have a common property, such as passage through a given line in a given plane. 8. To write or produce by using a pencil. 9. To mark or color with or as if with a pencil.