| Hint | Term | Often found... |
| A usually tubular optical instrument for viewing distant objects | |
| An optical instrument for inspecting objects too small to be seen by the unaided eye | |
| Device used in the animation technique in which animators trace over live-action film movement | |
| Widescreen movie format used from 1953 to 1967 | |
| An optical instrument for viewing objects that are above the level of direct sight | |
| An apparatus consisting of a rotating wheel so mounted that its axis can turn freely in certain or all directions | |
| A continually changing pattern of shapes and colors | |
| A medical instrument for detecting sounds produced in the body | |
| An astrological forecast | |
| Fiber-optic instrument surgically inserted through an incision near a joint | |
| An optical device that uses infrared radiation to allow one to see better in the dark | |
| Optical device for observing a spectrum of light or radiation from any source | |
| Instrument in which the variations in a fluctuating electrical quantity appear temporarily as a visible wave form | |
| Instrument for recording the occurrence or time of an earthquake. | |
| An instrument for indicating changes of temperature without indicating the degree of heat by which it is affected | |