| AEROSCOPES | • aeroscopes n. Plural of aeroscope. • AEROSCOPE n. a device for observing the atmosphere. |
| BAROSCOPES | • baroscopes n. Plural of baroscope. • BAROSCOPE n. a weatherglass. |
| CRYOSCOPES | • cryoscopes n. Plural of cryoscope. • CRYOSCOPE n. an instrument for determining freezing points of substances. |
| ENDOSCOPES | • endoscopes n. Plural of endoscope. • ENDOSCOPE n. an instrument for visualizing the interior of a hollow organ. |
| FETOSCOPES | • fetoscopes n. Plural of fetoscope. • FETOSCOPE n. an instrument used for looking at the fetus. |
| GYROSCOPES | • gyroscopes n. Plural of gyroscope. • GYROSCOPE n. a wheel or disc mounted so that it can spin rapidly about an axis which itself can rotate about either of two other axes perpendicular to it and to each other. |
| HODOSCOPES | • hodoscopes n. Plural of hodoscope. • HODOSCOPE n. an instrument for tracing paths of ionizing particles. |
| HOROSCOPES | • horoscopes n. Plural of horoscope. • HOROSCOPE n. a map of the heavens at the hour or on the day of a person's birth, by which an astrologer predicts the events of a person's life. |
| MUTOSCOPES | • mutoscopes n. Plural of mutoscope. • MUTOSCOPE n. an early form of cinematograph. |
| POROSCOPES | • poroscopes n. Plural of poroscope. • POROSCOPE n. an instrument for investigating porosity. |
| PYROSCOPES | • pyroscopes n. Plural of pyroscope. • PYROSCOPE n. an instrument for measuring intensity of radiant heat. |
| RHEOSCOPES | • rheoscopes n. Plural of rheoscope. • RHEOSCOPE n. an instrument for detecting the existence of an electric current. |
| ROTOSCOPES | • rotoscopes v. Third-person singular simple present indicative form of rotoscope. • ROTOSCOPE v. to create the outline of an object from live-action film for manipulation in an animated film sequence. |