| AERUGINOUS | • aeruginous adj. Of or pertaining to copper-rust or verdigris. • æruginous adj. Obsolete form of eruginous. • AERUGINOUS adj. relating to copper-rust or verdigris. |
| AUTOGENOUS | • autogenous adj. Produced independently of an external cause or influence. • autogenous adj. (Anatomy) Developed from an independent centre of ossification. • AUTOGENOUS adj. self-generated. |
| BLUETONGUE | • bluetongue n. A disease of ruminants, caused by Bluetongue virus of the genus Orbivirus, carried by mosquitos, midges etc. • blue-tongue n. (Australia) blue-tongue lizard. • BLUETONGUE n. an Australian lizard. |
| CURMUDGEON | • curmudgeon n. An ill-tempered person full of stubborn ideas or opinions. • curmudgeon n. (Archaic) A miser. • CURMUDGEON n. an avaricious, ill-natured churlish person; a miser. |
| EUGLOBULIN | • euglobulin n. (Biochemistry) A fraction of serum proteins obtained as a precipitate by adjusting salt levels and pH. • EUGLOBULIN n. a simple protein that does not dissolve in pure water. |
| HUMDUDGEON | • humdudgeon n. (Scotland, obsolete) An unnecessary outcry or complaint. • humdudgeon n. (Scotland, obsolete) An imaginary illness. • HUMDUDGEON n. (Scots) low spirits. |
| HUMDURGEON | • HUMDURGEON n. an imaginary illness. |
| LEGUMINOUS | • leguminous adj. Of the Leguminosae family of peas, beans etc. • leguminous adj. Resembling a legume. • LEGUMINOUS adj. relating to pulse vegetables. |
| NUBIGENOUS | • nubigenous adj. Born of, or produced from, clouds. • NUBIGENOUS adj. cloud-born. |
| OUTDUELING | • outdueling v. Present participle of outduel. • OUTDUEL v. to surpass in dueling. |
| OUTTONGUED | • outtongued v. Simple past tense and past participle of outtongue. • OUTTONGUE v. (Shakespeare) to speak louder than. |
| OUTTONGUES | • outtongues v. Third-person singular simple present indicative form of outtongue. • OUTTONGUE v. (Shakespeare) to speak louder than. |
| SUNLOUNGER | • sunlounger n. A form of extended deckchair used for sunbathing or relaxing (typically by the sea or a pool). • SUNLOUNGER n. an upholstered couch for sunbathing. |
| UNBESOUGHT | • unbesought adj. Not besought. • UNBESOUGHT adj. not looked for. |
| UNDERBOUGH | • UNDERBOUGH n. a lower branch of a tree. |
| UNFOUGHTEN | • UNFOUGHTEN adj. (archaic) without having been fought e.g. the army departed unfoughten. |
| UNGENEROUS | • ungenerous adj. Not generous; stingy. • UNGENEROUS adj. not generous. |
| UNGROUNDED | • ungrounded v. Simple past tense and past participle of unground. • ungrounded adj. Not grounded; without ground or basis, unreal, false. • ungrounded adj. (Electricity, electronics) Not connected to ground potential. |
| UNPLOUGHED | • unploughed adj. (Of a field or land) Unturned with a plough, and thus retaining its original vegetation (usually grass). • unploughed adj. (Figuratively) Unexplored or unknown. • UNPLOUGHED adj. not ploughed. |