(US) A pencil with a replaceable and mechanically extendable lead that wears away with use, designed to provide lines of constant thickness without requiring sharpening and typically features a small eraser at the end opposite the tip.
Other Word Forms of Mechanical-pencil
Mechanical-pencil Sentence Examples
If immortals are pens, and normal humans are number two pencils, then she's a mechanical pencil.
If using the subscript notation, solvers often create a larger copy of the puzzle or employ a sharp or mechanical pencil.
Sketches I use a mechanical pencil to draw my sketches.