| ETHNOHISTORIAN | • ethnohistorian n. One who studies ethnohistory. • ETHNOHISTORIAN n. a student of ethnohistory. |
| ETHNOHISTORIANS | • ethnohistorians n. Plural of ethnohistorian. • ETHNOHISTORIAN n. a student of ethnohistory. |
| HALFPENNYWORTH | • halfpennyworth n. (Britain) As much as could be bought for a halfpenny (pre- or post-decimalisation). • halfpennyworth n. (Britain, informal) A negligible amount. • halfpennyworth n. (Britain, informal) One’s opinion or thoughts; one’s two cents. |
| HALFPENNYWORTHS | • halfpennyworths n. Plural of halfpennyworth. • HALFPENNYWORTH n. as much as is sold for a halfpenny or is worth a halfpenny. |
| NIGHTMARISHNESS | • nightmarishness n. The state or condition of being nightmarish. • NIGHTMARISH n. like a nightmare, also NIGHTMARY. |
| NYCHTHEMERON | • nychthemeron n. A period of one day and one night, a date: in the West, this is a period of 24 consecutive hours. • NYCHTHEMERON n. (Greek) a full period of a day and night. |
| NYCHTHEMERONS | • nychthemerons n. Plural of nychthemeron. • NYCHTHEMERON n. (Greek) a full period of a day and night. |
| ORNITHICHNITE | • ornithichnite n. (Paleontology) A fossilised footprint left by a bird. • ORNITHICHNITE n. a fossil footprint of a bird. |
| ORNITHICHNITES | • ornithichnites n. Plural of ornithichnite. • ORNITHICHNITE n. a fossil footprint of a bird. |
| ORNITHODELPHIAN | • ORNITHODELPHIAN adj. of or like the Ornithodelphia, monotremes, also ORNITHODELPHIC, ORNITHODELPHOUS. |
| PHENANTHRENE | • phenanthrene n. (Organic chemistry) A tricyclic aromatic hydrocarbon obtained from coal tar; used in the manufacture… • PHENANTHRENE n. an aromatic hydrocarbon of coal tar. |
| PHENANTHRENES | • phenanthrenes n. Plural of phenanthrene. • PHENANTHRENE n. an aromatic hydrocarbon of coal tar. |
| RHADAMANTHINE | • Rhadamanthine adj. Strictly and uncompromisingly just. • Rhadamanthine adj. Inflexibly rigorous or severe. • RHADAMANTHINE adj. strictly and inflexibly honest and just. |
| THANKWORTHINESS | • thankworthiness n. The quality or state of being thankworthy. • THANKWORTHINESS n. the state of being thankworthy. |
| THREEPENNYWORTH | • threepennyworth n. (Dated) A portion worth threepence. • THREEPENNYWORTH n. goods to the value of threepence, also THREEPENCEWORTH. |