8-letter words containing a, d, u, i
- autocide — suicide by crashing the vehicle one is driving.
- autocoid — Alternative form of autacoid.
- autodial — a telephone device that makes possible a service feature (au·to-dial) whereby a call is automatically made in response to a brief input signal from the user, as the pressing of a button.
- basidium — the structure, produced by basidiomycetous fungi after sexual reproduction, in which spores are formed at the tips of projecting slender stalks
- baudekin — baldachin
- baudouin — 1930-93; king of Belgium (1951-93): son of Leopold III
- bicaudal — having two tails
- boudicca — died 62 ad, a queen of the Iceni, who led a revolt against Roman rule in Britain; after being defeated she poisoned herself
- buddleia — any ornamental shrub of the genus Buddleia, esp B. davidii, which has long spikes of mauve flowers and is frequently visited by butterflies: family Buddleiaceae
- caducity — perishableness
- caladium — any of various tropical plants of the aroid genus Caladium, which are widely cultivated as potted plants for their colourful variegated foliage
- caliduct — a pipe or duct for conveying a heating medium, as hot air or steam.
- carducci — Giosuè (dʒozuˈɛ). 1835–1907, Italian poet: Nobel prize for literature 1906
- caudaite — a small meteorite, generally less than one half millimeter in diameter, containing crystals of more or less pure magnetite.
- caudicle — the stalk to which an orchid's pollen masses are attached
- caudillo — (in Spanish-speaking countries) a military or political leader
- caudling — Present participle of caudle.
- claudine — a female given name, form of Claudia.
- claudius — full name Tiberius Claudius Drusus Nero Germanicus. 10 bc–54 ad, Roman emperor (41–54); invaded Britain (43); poisoned by his fourth wife, Agrippina
- coumadin — Synonym of warfarin.
- cuboidal — Also, cuboidal. resembling a cube in form.
- cuspidal — of, like, or having a cusp; cuspidate.
- custodia — (rare) pyx (container for the host).
- daibutsu — a large representation of the Buddha.
- daiquiri — A daiquiri is a drink made with rum, lime or lemon juice, sugar, and ice.
- danubian — of or relating to the river Danube
- darius i — known as Darius the Great, surname Hystaspis. ?550–486 bc, king of Persia (521–486), who extended the Persian empire and crushed the revolt of the Ionian city states (500). He led two expeditions against Greece but was defeated at Marathon (490)
- dasyurid — Any carnivorous marsupial of the family Dasyuridae.
- daturine — a poisonous substance found in plants belonging to the Solanaceae family
- daubigny — Charles François (ʃarl frɑ̃swa). 1817–78, French landscape painter associated with the Barbizon School
- daunting — Something that is daunting makes you feel slightly afraid or worried about dealing with it.
- dauphine — the wife of a dauphin
- deciduae — Plural form of decidua.
- decidual — the endometrium of a pregnant uterus that in many of the higher mammals is cast off at parturition.
- denarius — a silver coin of ancient Rome, often called a penny in translation
- deutzias — Plural form of deutzia.
- dialogue — Dialogue is communication or discussion between people or groups of people such as governments or political parties.
- dianthus — any Eurasian caryophyllaceous plant of the widely cultivated genus Dianthus, such as the carnation, pink, and sweet william
- diapause — a period of suspended development and growth accompanied by decreased metabolism in insects and some other animals. It is correlated with seasonal changes
- dilaudid — an addictive, narcotic painkiller, C17H20ClNO3, that is stronger than morphine
- dilutant — A diluting agent; a diluent, or thinner.
- diluvial — pertaining to or caused by a flood or deluge.
- diluvian — pertaining to or caused by a flood or deluge.
- dinosaur — any chiefly terrestrial, herbivorous or carnivorous reptile of the extinct orders Saurischia and Ornithischia, from the Mesozoic Era, certain species of which are the largest known land animals.
- dipluran — Any of various hexapods, of the order Diplura.
- disabuse — to free (a person) from deception or error.
- disannul — to annul utterly; make void: to disannul a contract.
- dissuade — to deter by advice or persuasion; persuade not to do something (often followed by from): She dissuaded him from leaving home.
- disusage — Gradual cessation of use or custom; disuse.
- disvalue — disesteem; disparagement.