| RIBBONFISHES | • ribbonfishes n. Plural of ribbonfish. • RIBBONFISH n. a long slender fish, the oarfish. |
| RIBOFLAVINES | • RIBOFLAVINE n. a member of the vitamin B complex, in yellowish-brown crystals, promoting growth in children, also RIBOFLAVIN. |
| RIBONUCLEASE | • ribonuclease n. (Biochemistry) Any of a group of enzymes that catalyze the hydrolysis of ribonucleic acid. • RIBONUCLEASE n. an enzyme that catalyzes the hydrolysis of RNA. |
| RICOCHETTING | • ricochetting v. Present participle of ricochet. • RICOCHET v. (French) to rebound from a surface. |
| RIDABILITIES | • RIDABILITY n. the state of being ridable. |
| RIDESHARINGS | • RIDESHARING n. the practice of sharing a car with other commuters as a means of lessening traffic congestion or pollution. |
| RIDICULOUSLY | • ridiculously adv. In a ridiculous manner. In a way that is funny, embarrassing or extremely implausible. • ridiculously adv. (Degree) extremely; very. • RIDICULOUS adv. arousing or deserving ridicule. |
| RIFACIMENTOS | • rifacimentos n. Plural of rifacimento. • RIFACIMENTO n. (Italian) a recasting of a literary or musical work. |
| RIGHTFULNESS | • rightfulness n. The state or quality of being rightful. • RIGHTFULNESS n. the state of being rightful. |
| RIGHTSIZINGS | • RIGHTSIZING n. the act of adapting an organisation to an appropriate size by means of redundancies. |
| RIGOROUSNESS | • rigorousness n. The property of being rigorous, strictness. • RIGOROUSNESS n. the state of being rigorous. |
| RIJKSDAALERS | • RIJKSDAALER n. (Dutch) a small Dutch silver coin, also RIGSDALER. |
| RINTHEREOUTS | • RINTHEREOUT n. (Scots) a vagrant. |
| RISIBILITIES | • risibilities n. Plural of risibility. • RISIBILITY n. the quality of being risible. |
| RISORGIMENTO | • Risorgimento prop.n. (Historical) The political and military movement that led to the unification of Italy in the 19th century. • Risorgimento prop.n. Renewal, revival, renaissance. • RISORGIMENTO n. (Italian) a time of renewal or renaissance; specifically, the 19th century movement for Italian political unity. |
| RISPERIDONES | Sorry, definition not available. |
| RITOURNELLES | • RITOURNELLE n. (French) a short instrumental passage in a vocal work, also RITORNEL, RITORNELL, RITORNELLE, RITORNELLO. |