12-letter words containing o, d, s, u
- double-cross — to prove treacherous to; betray or swindle, as by a double cross.
- double-sided — double-faced (defs 2, 3).
- double-space — to type (text, copy, etc.) leaving a full space between lines: Always double-space a term paper.
- doubtfulness — of uncertain outcome or result.
- douglas hurd — a third-class university degree
- douglas-home — Alexander Frederick (Baron Home of the Hirsel) 1903–1995, British statesman and politician: prime minister 1963–64.
- dreadnoughts — Plural form of dreadnought.
- dromaeosaurs — Plural form of dromaeosaur.
- drop biscuit — a biscuit made by dropping baking powder biscuit dough from a spoon onto a pan for baking.
- droseraceous — of or relating to the genus of plants Drosera
- droughtiness — Dryness of the weather; lack of rain.
- dry tortugas — a group of eight coral islands at the entrance to the Gulf of Mexico: part of Florida
- dryopithecus — an extinct genus of generalized hominoids that lived in Europe and Africa during the Miocene Epoch and whose members are characterized by small molars and incisors.
- dual-purpose — serving two functions.
- duck-shoving — the evasion of responsibility by someone
- dulcet tones — People often use the expression dulcet tones to refer to someone's voice.
- duodecastyle — dodecastyle.
- duplex house — a house having separate apartments for two families, especially a two-story house having a complete apartment on each floor and two separate entrances.
- duplications — Plural form of duplication.
- dusky grouse — blue grouse.
- dust counter — any instrument used to measure the size and number of dust particles per unit volume in the atmosphere.
- dust-to-dust — (of the environmental impact of a manufactured item) taking into account all phases of the item's existence from construction to eventual disposal
- dusty clover — a bush clover, Lespedeza capitata.
- dysfunctions — Plural form of dysfunction.
- echo sounder — a sonar instrument that uses echolocation to measure depths under water.
- edaphosaurus — Any of several dinosaurs of the family Edaphosauridae, from the Carboniferous and Permian periods, that had a distinctive dorsal sail or crest.
- educationese — the jargon associated with the field of education.
- educationist — a specialist in the theory and methods of education.
- egads button — a switch that triggers the destruction in flight of a malfunctioning missile.
- eggdrop soup — a soup made by stirring beaten eggs into a simmering broth.
- eisteddfodau — Plural form of eisteddfod.
- elucidations — Plural form of elucidation.
- endogenously — In an endogenous manner.
- endonuclease — An enzyme that cleaves a polynucleotide chain by separating nucleotides other than the two end ones.
- endophyllous — enclosed in a leaf or sheath
- endovascular — Within a blood vessel.
- ethosuximide — A particular anticonvulsant drug.
- eunuchoidism — A syndrome in males with a lack of sex characteristics due to lack of proper male sex hormones.
- expostulated — Simple past tense and past participle of expostulate.
- fastidiously — excessively particular, critical, or demanding; hard to please: a fastidious eater.
- favouredness — the quality of or extent to which something is favoured
- flindermouse — (obsolete) A bat (the mammal).
- fluoroscoped — Simple past tense and past participle of fluoroscope.
- food subsidy — a financial aid supplied by a government, as to industry, farmers, or consumers, in order to make low-cost food available to the poor
- forward push — A forward push is a feature of distillation columns (= tall vessels for distillation) in which zones that allow higher contact between substances are near the top of the column.
- foundry sand — silica-based sand mixed with clay, oil, etc, to improve its cohesive strength, used in moulding
- fourdriniers — Plural form of fourdrinier.
- fourfoldness — the quality of consisting of four parts
- frondiferous — Producing fronds.
- fundusectomy — (surgery) The surgical removal of the fundus of an organ, such as the uterus or the stomach.