| Term | Definition |
| Eyepiece | Contains a magnifying lens you look through |
| Arm | Supports the body tube |
| Low-power objective | Contains the lens with low-power magnification |
| Stage clips | Hold the microscope slide in place |
| Coarse adjustment | Focuses the image under low power |
| Fine adjustment | Sharpens the image under high and low magnification |
| Body tube | Connects the eyepiece to the revolving nosepiece |
| Revolving nosepiece | Holds and turns the objectives into viewing position |
| High-power objective | Contains the lens with the highest magnification |
| Stage | Supports the microscope slide |
| Light source | Allows light to reflect upward through the diaphragm, the specimen, and the lenses |
| Base | Provides support for the microscope |