| EPHEMEROPTERAN | • ephemeropteran n. (Zoology) Any insect of the order Ephemeroptera, the mayflies. • EPHEMEROPTERAN n. any insect of the mayfly family. |
| FEATHERBRAINED | • featherbrained adj. Alternative spelling of feather-brained. • feather-brained adj. Foolish, scatterbrained. • FEATHERBRAINED adj. foolish. |
| HEREDITARINESS | • hereditariness n. (Rare) The property of being hereditary. • HEREDITARINESS n. the state of being hereditary. |
| HYPERALERTNESS | • hyperalertness n. The condition of being hyperalert. |
| HYPERAWARENESS | • hyperawareness n. The state of being hyperaware, or extremely sensitive to stimuli. • HYPERAWARENESS n. the state of being hyperaware. |
| NEANDERTHALERS | • NEANDERTHALER n. a primitive or reactionary person, also NEANDERTAL, NEANDERTALER, NEANDERTHAL. |
| NORTHEASTERNER | • northeasterner n. A person from the northeast part of a geographic region, especially the United States. |
| OVERRASHNESSES | • OVERRASHNESS n. the state of being overrash. |
| OVERWEATHERING | • overweathering v. Present participle of overweather. • OVERWEATHER v. (Shakespeare) to batter by violence of weather. |
| SELENOGRAPHERS | • selenographers n. Plural of selenographer. • SELENOGRAPHER n. one who maps the moon, also SELENOGRAPHIST. |
| SOUTHEASTERNER | • southeasterner n. A person from the southeast part of a geographic region. |
| THERMOREMANENT | • thermoremanent adj. Of or pertaining to the magnetic field that remains when molten rock solidifies. • THERMOREMANENT adj. relating to magnetic remanence (as in a rock cooled from a molten state or in a baked clay object containing magnetic minerals) that indicates the strength and direction of the earth's magnetic field at a former time. |
| THREADBARENESS | • threadbareness n. The state or condition of being threadbare. • THREADBARENESS n. the state of being threadbare. |
| UNDERACHIEVERS | • underachievers n. Plural of underachiever. • UNDERACHIEVER n. one that fails to attain a predicted level of achievement or does not do as well as expected. |
| WEATHERPERSONS | • weatherpersons n. Plural of weatherperson. • WEATHERPERSON n. a person who reports and forecasts the weather. |