| Term | Definition |
|---|
| Surface Area | The sum of all the areas of all surfaces of a solid. |
| Countersink | A conical-shaped recess around a hole, often used to receive a tapered screw. |
| Counterbore | A cylindrical recess around a hole, usually to receive a bolt head or nut |
| Extrusion | A manufacturing process that forces material through a shaped opening. |
| Geometric Constraint | Constant, non-numerical relationships between the parts of a geometric figure. Examples include parallel, perpendicular, and concentric. |
| Tap | To cut internal threads. |
| Circumscribe | To draw a figure around another touching it at points but not cutting it. |
| Inscribe | To draw a figure inside another touching it at points but not cutting it. |
| Density | Mass divided by volume. |
| Chamfer | A small angled surface formed between two surfaces. |
| Volume | The amount of space occupied by a substance or object or enclosed within a container. |
| Ellipse | A regular oval shape traced by a point moving in a plane so that the sum of its distances from two other points is constant. |
| Parallelogram | A quadrilateral whose opposite sides are both parallel and equal in length |
| Mass | The amount of matter an object contains. |
| Radius | A straight line from the center to the circumference of a circle or sphere. |
| Taper | Gradual diminution of width or thickness in an elongated object. |
| Rotation | Turning around an axis or center point. |
| Diameter | A straight line passing from side to side through the center of a circle or sphere. |
| Mirror | To flip a shape over a line of symmetry and double the image. |
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