| ARCHOSAURS | • archosaurs n. Plural of archosaur. • ARCHOSAUR n. any of a subclass of reptiles comprising pterosaurs, dinosaurs and crocodilians.
 | 
| ARROWGRASS | • arrowgrass n. Any of various grass-like plants of the genus Triglochin. • ARROWGRASS n. a grass of a genus of marsh plants whose burst capsule is like an arrowhead.
 | 
| ASPERSORIA | • aspersoria n. Plural of aspersorium. • ASPERSORIUM n. a basin for holy water.
 | 
| ASPIRATORS | • aspirators n. Plural of aspirator. • ASPIRATOR n. an instrument for removing fluids or solids from cavities of the body.
 | 
| CARNOSAURS | • carnosaurs n. Plural of carnosaur. • CARNOSAUR n. a meat-eating dinosaur.
 | 
| CASTRATORS | • castrators n. Plural of castrator. • CASTRATOR n. a device used in castration, also CASTRATER.
 | 
| CROSSANDRA | • crossandra n. (Botany) Any of the genus Crossandra of flowering plants in the family Acanthaceae. • CROSSANDRA n. any evergreen shrub of the genus Crossandra.
 | 
| HADROSAURS | • hadrosaurs n. Plural of hadrosaur. • HADROSAUR n. a bird-hipped dinosaur of the Cretaceous.
 | 
| MARMAROSES | • MARMAROSIS n. the conversion of limestone into marble. | 
| MARMAROSIS | • marmarosis n. (Geology) The metamorphosis of limestone into marble. • MARMAROSIS n. the conversion of limestone into marble.
 | 
| REAROUSALS | • rearousals n. Plural of rearousal. • REAROUSAL n. the act of rearousing.
 | 
| SARCOCARPS | • sarcocarps n. Plural of sarcocarp. • SARCOCARP n. the fleshy part of a stone fruit.
 | 
| SATURATORS | • saturators n. Plural of saturator. • SATURATOR n. one who, or that which, saturates, also SATURATER.
 | 
| SEPARATORS | • separators n. Plural of separator. • SEPARATOR n. something that separates.
 | 
| SERRASALMO | • Serrasalmo prop.n. A former piranha genus, now classified under Pygocentrus. • SERRASALMO n. a fish of the piranha genus.
 | 
| STARBOARDS | • starboards n. Plural of starboard. • STARBOARD v. to put or turn (the helm) to the starboard side of the vessel.
 |