| ASTROTOURISM | • astrotourism n. Tourism pertaining to stars, meteors, eclipses, etc. • astrotourism n. Synonym of space tourism. • ASTROTOURISM n. tourism in space. |
| DEMONSTRATOR | • demonstrator n. One who demonstrates anything, or proves beyond doubt. • demonstrator n. The forefinger. • demonstrator n. One who takes part in a demonstration; a protester. |
| ELECTROMOTOR | • electromotor n. (Physics) Any device that generates electricity. • electromotor n. (Physics) Any device that converts electricity into motion. • ELECTROMOTOR n. a device for applying electricity as a motive power. |
| MOTORBOATERS | • motorboaters n. Plural of motorboater. • MOTORBOATER n. one who drives a motorboat. |
| NORTHERNMOST | • northernmost adj. Farthest north. • NORTHERNMOST adj. most northerly, also NORTHERMOST, NORTHMOST. |
| ORTHOTROPISM | • orthotropism n. The property of being orthotropic or orthotropous. • ORTHOTROPISM n. vertical growth. |
| PROTOMARTYRS | • protomartyrs n. Plural of protomartyr. • PROTOMARTYR n. the first martyr in any cause, esp. St Stephen. |
| REMONSTRATOR | • remonstrator n. One who remonstrates. • REMONSTRATOR n. one who remonstrates. |
| THERMOMOTORS | • THERMOMOTOR n. an engine that produces force from the expansion of a heated fluid. |
| THERMOTROPIC | • thermotropic adj. (Biology, of a plant) Tending to move towards or away from a source of heat. • thermotropic adj. (Physics, of a liquid crystal) Exhibiting different phases at different temperatures. • THERMOTROPIC adj. bending towards or away from a heat source. |
| TRIGONOMETER | • trigonometer n. An instrument for solving plane right-angled figures by inspection. • TRIGONOMETER n. instrument for solving triangles. |
| TRIGONOMETRY | • trigonometry n. (Geometry, mathematical analysis) The branch of mathematics that deals with the relationships between… • TRIGONOMETRY n. the study of the properties of triangles and trigonometric functions and of their applications. |
| TRIMETROGONS | • trimetrogons n. Plural of trimetrogon. • TRIMETROGON n. a technique of aerial photography using three cameras, which increases the range and detail of the coverage. |
| TROCHOMETERS | • trochometers n. Plural of trochometer. • TROCHOMETER n. a hodometer, also TROCHEAMETER. |