| AFFIRMATORY | • affirmatory adj. Giving affirmation; assertive; affirmative. • AFFIRMATORY adj. expressing affirmation. |
| AIRCRAFTMAN | • aircraftman n. A member of the lowest rank in the Royal Air Force or the air forces of various other Commonwealth countries. • AIRCRAFTMAN n. a member of the lowest (male) rank in the RAF, also AIRCRAFTSMAN. |
| AIRCRAFTMEN | • aircraftmen n. Plural of aircraftman. • AIRCRAFTMAN n. a member of the lowest (male) rank in the RAF, also AIRCRAFTSMAN. |
| CONFIRMATOR | • confirmator n. One who, or that which, confirms; a confirmer. • CONFIRMATOR n. one who confirms. |
| CRATERIFORM | • crateriform adj. (Botany) Having the form of a shallow bowl. • CRATERIFORM adj. cup-shaped. |
| FERRIMAGNET | • ferrimagnet n. (Physics) Any ferrimagnetic material. • FERRIMAGNET n. an iron magnet in which the magnetic moments of neighbouring ions are nonparallel. |
| FLUORIMETER | • fluorimeter n. Alternative form of fluorometer. • FLUORIMETER n. an instrument for measuring fluorescence, also FLUOROMETER. |
| FLUORIMETRY | • fluorimetry n. (Chemistry, physics) fluorescence spectroscopy. • FLUORIMETRY n. measurement by fluorimeter, also FLUOROMETRY. |
| FREEMARTINS | • freemartins n. Plural of freemartin. • FREEMARTIN n. a sexually deficient female calf born as a bull calf's twin. |
| GRANITIFORM | • granitiform adj. (Geology) Resembling granite in structure or shape. • GRANITIFORM adj. having the form of granite. |
| IMPERFECTER | • IMPERFECT adj. not perfect, also UNPERFECT. |
| IMPERFORATE | • imperforate adj. Not perforated, as… • imperforate n. (Philately) A postage stamp that has not been perforated. • IMPERFORATE adj. not perforated into perforated rows, used of stamps and sheets of stamps, also IMPERFORATED. |
| INFORMATORY | • informatory adj. Providing or communicating information. • INFORMATORY adj. conveying information. |
| MICROFILTER | • microfilter n. A filter that removes very small particles. • MICROFILTER n. a very small filter. |
| MORTIFEROUS | • mortiferous adj. (Now rare) Causing spiritual death. • mortiferous adj. Causing physical death; deadly, fatal, lethal. • MORTIFEROUS adj. death-bringing; fatal. |
| REFORMATION | • reformation n. An improvement (or an intended improvement) in the existing form or condition of institutions or practices… • reformation n. (Law) Change or correction, by a court in equity, to a written instrument to conform to the original… • Reformation prop.n. (Historical) The religious movement initiated in the 16th century against the Roman Catholic Church. |
| REFORMATIVE | • reformative adj. That serves to reform or correct. • REFORMATIVE adj. intended or tending to reform. |
| REFRAINMENT | • refrainment n. The act of refraining. • REFRAINMENT n. the act of refraining. |
| REPTILIFORM | • reptiliform adj. Resembling or relating to reptiles. • REPTILIFORM adj. having the form of a reptile. |
| TRAPEZIFORM | • trapeziform adj. Shaped like a trapezium. • TRAPEZIFORM adj. in the form of a trapezoid quadrilateral with no sides parallel. |