| ARTERIOTOMY | • arteriotomy n. (Medicine) The opening of an artery, especially for bloodletting. • ARTERIOTOMY n. the surgical excision of an artery. |
| MOTHERWORTS | • motherworts n. Plural of motherwort. • MOTHERWORT n. a labiate herb, of a bitter taste, used popularly in medicine. |
| MOTORBOATER | • motorboater n. Someone who pilots a motorboat. • MOTORBOATER n. one who drives a motorboat. |
| MOTORSPORTS | • motorsports n. Plural of motorsport. |
| MOTORTRUCKS | • motortrucks n. Plural of motortruck. • motor␣trucks n. Plural of motor truck. • MOTORTRUCK n. a truck driven by a motor. |
| NORTHERMOST | • northermost adj. Synonym of northernmost. • NORTHERMOST adj. most northerly, also NORTHERNMOST, NORTHMOST. |
| PROTOMARTYR | • protomartyr n. Any of the first Christian martyrs. • PROTOMARTYR n. the first martyr in any cause, esp. St Stephen. |
| STREETROOMS | • STREETROOM n. space enough in the street. |
| THERMOMOTOR | • THERMOMOTOR n. an engine that produces force from the expansion of a heated fluid. |
| TORTURESOME | • torturesome adj. Characterised or marked by torture; torturous. • TORTURESOME adj. torturous. |
| TRIMETROGON | • trimetrogon n. A single assembly of three cameras at differing angles, used for aerial photographic surveys. • trimetrogon n. An image produced by this means. • TRIMETROGON n. a technique of aerial photography using three cameras, which increases the range and detail of the coverage. |
| TROCHOMETER | • trochometer n. A device for counting the revolutions of a wheel; an odometer. • TROCHOMETER n. a hodometer, also TROCHEAMETER. |
| TROMOMETERS | • tromometers n. Plural of tromometer. • TROMOMETER n. an instrument for detecting or measuring faint tremors caused by an earthquake. |
| TROMOMETRIC | • tromometric adj. Relating to the tromometer. • TROMOMETRIC adj. relating to a tromometer, an instrument for measuring slight earthquake shocks. |