8-letter words containing a, i, o
- daimonic — daemon.
- daltonic — color blindness, especially the inability to distinguish red from green.
- danilova — Alexandra [al-ig-zan-druh,, -zahn-;; Russian uh-lyi-ksahn-druh] /ˌæl ɪgˈzæn drə,, -ˈzɑn-;; Russian ʌ lyɪˈksɑn drə/ (Show IPA), 1904?–97, Russian ballet dancer.
- darioles — Plural form of dariole.
- datolite — a colourless mineral consisting of a hydrated silicate of calcium and boron in monoclinic crystalline form, occurring in cavities in igneous rocks. Formula: CaBSiO4(OH)
- davidson — Jo(seph)1883-1952; U.S. sculptor
- davisson — Clinton Joseph. 1881–1958, US physicist, noted for his discovery of electron diffraction; shared the Nobel prize for physics in 1937
- debation — Debating.
- debonair — A man who is debonair is confident, charming, and well-dressed.
- decanoic — Of or pertaining to decanoic acid or its derivatives; capric.
- delation — Chiefly Scot. to inform against; denounce or accuse.
- demoniac — of, like, or suggestive of a demon; demonic
- demonian — of, relating to, or resembling a demon
- deration — to end rationing of (food, petrol, etc)
- deviator — to turn aside, as from a route, way, course, etc.
- devonian — of, denoting, or formed in the fourth period of the Palaeozoic era, between the Silurian and Carboniferous periods, lasting 60-70 million years during which amphibians first appeared
- diabolic — Diabolic is used to describe things that people think are caused by or belong to the Devil.
- diabolos — Plural form of diabolo.
- diaconal — of or associated with a deacon or the diaconate
- diadochi — the six Macedonian generals who, after the death of Alexander the Great, fought for control of his empire in the Wars of the Diadochi (321–281 bc)
- diadochy — the replacement of one element in a crystal by another
- diagnose — If someone or something is diagnosed as having a particular illness or problem, their illness or problem is identified. If an illness or problem is diagnosed, it is identified.
- diagonal — A diagonal line or movement goes in a sloping direction, for example, from one corner of a square across to the opposite corner.
- dialogic — of, relating to, or characterized by dialogue.
- dialogue — Dialogue is communication or discussion between people or groups of people such as governments or political parties.
- diamonds — one of the four suits in an ordinary pack of cards bearing red lozenge-shapes symbols
- diamonte — A seven-line poem describing two opposite subjects using only adjectives, nouns and participles.
- dianodal — that passes through nodes
- diapason — either of two stops (open and stopped diapason) usually found throughout the compass of a pipe organ that give it its characteristic tone colour
- diaphone — the set of all realizations of a given phoneme in a language
- diaphony — a style of two-part polyphonic singing; organum or a freer form resembling it
- diascope — an optical projector used to display transparencies
- diaspora — the dispersion of the Jews after the Babylonian and Roman conquests of Palestine
- diaspore — a white, yellowish, or grey mineral consisting of hydrated aluminium oxide in orthorhombic crystalline form, found in bauxite and corundum. Formula: AlO(OH)
- diastole — the dilatation of the chambers of the heart that follows each contraction, during which they refill with blood
- diatomic — containing two atoms
- diatonic — of, relating to, or based upon any scale of five tones and two semitones produced by playing the white keys of a keyboard instrument, esp the natural major or minor scales forming the basis of the key system in Western music
- diazinon — a type of strong insecticide
- diazoles — Plural form of diazole.
- diborane — a colorless gas with an unpleasant odor, B 2 H 6 , used in the synthesis of organic boron compounds as a dope to introduce boron and as a polymerization catalyst for ethylene.
- dicaprio — Leonardo. born 1974, US film actor; his films include Romeo and Juliet (1996), Titanic (1997), Gangs of New York (2002), The Departed (2006), and Django Unchained (2012)
- dication — (chemistry) Any cation, of general formula X2+, formed by the removal of two electrons from a neutral species.
- dictator — A dictator is a ruler who has complete power in a country, especially power which was obtained by force and is used unfairly or cruelly.
- dilation — the act of dilating; state of being dilated.
- dilators — Plural form of dilator.
- dilatory — tending to delay or procrastinate; slow; tardy.
- dimaggio — Joseph Paul ("Joe"; "Joltin' Joe") 1914–1999, U.S. baseball player.
- 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.
- diocesan — of or relating to a diocese.
- dionysia — The orgiastic Ancient Greek festivals seasonally held in honor of Dionysus, which evolved into Greek comedy and tragedy.