| BIRTHROOT | • birthroot n. Trillium erectum, a perennial plant of North America with deep-red flowers. • BIRTHROOT n. a herbaceous plant with an astringent rootstock, said to have medicinal properties, also BIRTHWORT. |
| CARROTTOP | • carrottop n. Alternative form of carrot top. • carrot-top n. Alternative form of carrot top. • carrot␣top n. (Informal, derogatory) A person with red hair; a redhead. |
| CORRETTOS | • CORRETTO n. (Italian) espresso with booze. |
| HORTATORY | • hortatory adj. Giving exhortation or advice; encouraging. • hortatory n. Exhortation or advice; incitement; encouragement. • hortatory n. That which exhorts, incites, or encourages. |
| OBTURATOR | • obturator n. (Surgery) An object used to obstruct a hole, such as a fissure of the palate. • obturator n. (Anatomy) The membrane vessels, etc. that close the obturator foramen, or thyroid foramen, a large opening… • obturator n. (Engineering) A valve closure member (Disk, gate, plug, etc.). |
| ORTHOPTER | • orthopter n. Any insect of the order Orthoptera. • orthopter n. Synonym of ornithopter. • ORTHOPTER n. a type of aircraft propelled with flapping wings. |
| OUTPORTER | • OUTPORTER n. (Canadian) an inhabitant or native of a Newfoundland outport. |
| PROTECTOR | • protector n. Someone who protects or guards, by assignment or on their own initiative. • protector n. A device or mechanism which is designed to protect. • protector n. One who prevents interference. (Can we add an example for this sense?) |
| PROTESTOR | • protestor n. Alternative spelling of protester. • PROTESTOR n. one who protests, also PROTESTER. |
| PROTOSTAR | • protostar n. (Astronomy) A collection of gas and dust in space with high temperature that usually grows to the point… • PROTOSTAR n. a condensing mass of gas in the early formation of a star. |
| RETORTION | • retortion n. Alternative form of retorsion. • RETORTION n. the act of retorting or throwing back, also RETORSION. |
| ROTATORES | • rotatores n. (Anatomy) A group of muscles that lie beneath the multifidus. Somewhat quadrilateral in form, they are… • ROTATOR n. a muscle serving to rotate a part of the body. |
| ROTAVATOR | • rotavator n. A machine with rotating blades designed to break up or till soil. • ROTAVATOR n. (tradename) a tool for breaking up the soil, also ROTOVATOR. |
| ROTOVATOR | • rotovator n. Alternative form of rotavator. • ROTOVATOR n. (tradename) a tool for breaking up the soil, also ROTAVATOR. |
| TILTROTOR | • tiltrotor n. An aircraft that has powered rotors mounted on engine pods that can rotate to provide lift and/or propulsion. • TILTROTOR n. an aircraft with rotors that can be tilted. |
| TOLERATOR | • tolerator n. One who tolerates. • TOLERATOR n. one who tolerates. |
| TORMENTOR | • tormentor n. One who torments; a person, animal, or object that causes suffering. • tormentor n. (Figuratively) Something abstract that causes suffering. • tormentor n. (Theater) One of a pair of narrow curtains just behind the front curtain and teaser that mask the areas… |
| TORTUROUS | • torturous adj. Of or pertaining to torture. • torturous adj. Painful, excruciating, torturing. • TORTUROUS adj. involving, or pertaining to, torture. |
| TRIMOTORS | • trimotors n. Plural of trimotor. • TRIMOTOR n. an aeroplane powered by three engines. |
| TROTTOIRS | • trottoirs n. Plural of trottoir. • TROTTOIR n. (French) pavement. |