| BUTTONHOLDING | • BUTTONHOLD v. to detain in talk, also BUTTONHOLE. |
| ETHNOLINGUIST | • ethnolinguist n. A scholar of ethnolinguistics; a linguistic anthropologist who studies the language of a specific ethnic group. • ETHNOLINGUIST n. one who studies the relationship between language and cultural behaviour. |
| HALLUCINATION | • hallucination n. A sensory perception of something that does not exist, often arising from disorder of the nervous system… • hallucination n. The act of hallucinating; a wandering of the mind; an error, mistake or blunder. • hallucination n. (Artificial intelligence) A confident but incorrect response given by an artificial intelligence. |
| HALLUCINOGENS | • hallucinogens n. Plural of hallucinogen. • HALLUCINOGEN n. a substance that induces hallucinations, also HALLUCINOGENIC. |
| HOUSECLEANING | • housecleaning n. Collectively, the tasks involved with cleaning a house; the practice of cleaning a house. • housecleaning v. Present participle of houseclean. • HOUSECLEANING n. the act of cleaning house. |
| OVERLAUNCHING | • overlaunching v. Present participle of overlaunch. • OVERLAUNCH v. in shipbuilding, to join by long splices or scarfs. |
| PHYLLOQUINONE | • phylloquinone n. (Biochemistry, pharmacology) Synonym of phytomenadione. • PHYLLOQUINONE n. vitamin K1, one of the fat-soluble vitamin K group, essential for normal blood coagulation. |
| PUNCHINELLOES | • Punchinelloes n. Plural of Punchinello. • PUNCHINELLO n. (Italian) a fat short humpbacked clown. |
| QUINTILLIONTH | • quintillionth adj. The ordinal form of the number one quintillion. • quintillionth n. The person or thing in the quintillionth position. • quintillionth n. One of a quintillion equal parts of a whole. |
| SNOWPLOUGHING | • snowploughing v. Present participle of snowplough. • snow␣ploughing v. Present participle of snow plough. • SNOWPLOUGH v. to clear with a snowplough, also SNOWPLOW. |
| SULPHONATIONS | • sulphonations n. Plural of sulphonation. • SULPHONATION n. the act of sulphonating. |
| UNCHLORINATED | • unchlorinated adj. Not chlorinated. • UNCHLORINATED adj. not chlorinated. |
| UNDERCLOTHING | • underclothing n. Clothing worn next to the skin; underwear. • UNDERCLOTHING n. clothes worn under others, esp. those next to the skin. |
| UNFASHIONABLE | • unfashionable adj. Not fashionable. • unfashionable adj. (Obsolete) That cannot be fashioned; unshapely, distorted. • UNFASHIONABLE adj. not in keeping with the current fashion. |
| UNFASHIONABLY | • unfashionably adv. In an unfashionable manner. • UNFASHIONABLE adv. not in keeping with the current fashion. |
| UNNEIGHBOURLY | • unneighbourly adj. Not neighbourly; antisocial. • unneighbourly adv. In a way that is not neighbourly. • UNNEIGHBOURLY adj. not like a neighbour, also UNNEIGHBORLY. |
| UNWITHHOLDING | • UNWITHHOLDING adj. not withholding. |