| ABROGATORS | • abrogators n. Plural of abrogator. • ABROGATOR n. one who abrogates, abolishes authoritatively or formally. |
| BIOTERRORS | • BIOTERROR n. use of biological weapons by terrorists. |
| BIRTHROOTS | • birthroots n. Plural of birthroot. • BIRTHROOT n. a herbaceous plant with an astringent rootstock, said to have medicinal properties, also BIRTHWORT. |
| BREADROOTS | • breadroots n. Plural of breadroot. • BREADROOT n. the edible root of a leguminous plant, found near the Rocky Mountains, aka prairie turnip. |
| BRIARROOTS | • briar-roots n. Plural of briar-root. • BRIARROOT n. the root of a briar, also BRIERROOT. |
| BRIERROOTS | • BRIERROOT n. the root of a briar, also BRIARROOT. |
| BRONTOSAUR | • brontosaur n. Any member of the genus Brontosaurus. • BRONTOSAUR n. any of a genus of large sauropod dinosaurs of the Jurassic, also BRONTOSAURUS. |
| DOORBUSTER | • doorbuster n. An unusually low sale price, typically offered by a retailer on a limited number of items for a limited… |
| OBSERVATOR | • observator n. (Obsolete) An observer. • OBSERVATOR n. one who observes or takes notice. |
| OBSTRUCTOR | • obstructor n. Alternative form of obstructer. • OBSTRUCTOR n. one who obstructs, also OBSTRUCTER. |
| OBTURATORS | • obturators n. Plural of obturator. • OBTURATOR n. a structure or device that closes a cavity. |
| OUTHARBORS | • outharbors n. Plural of outharbor. • OUTHARBOR n. (Canadian) in Newfoundland, any city or town having a harbor other than the main city of St . John's. |
| SHORTBOARD | • shortboard n. (Surfing) A type of surfboard which is about 6 to 7 feet long (boards are always measured in feet, even… • SHORTBOARD n. a surfboard between six and eight feet in length. |
| STONEBORER | • STONEBORER n. any boring mollusc. |
| STORYBOARD | • storyboard n. A series of drawings that lay out the sequence of scenes in a film or series, especially an animated one. • storyboard n. Any sequence of drawings or diagrams which illustrate a sequence of events, e.g. in an accident or as… • storyboard v. To create and arrange storyboard drawings. |
| STROBOTRON | • strobotron n. A cold-cathode tube designed for high-current narrow pulses, used in high-speed photography. • STROBOTRON n. a gas-filled electron tube used esp. as a source of bright flashes of light for a stroboscope. |
| TURBOPROPS | • turboprops n. Plural of turboprop. • TURBOPROP n. a jet engine in which the turbine is coupled to a propeller. |