12-letter words containing o, d, a, n
- don giovanni — an opera (1787) by Wolfgang Amadeus Mozart.
- don't ask me — You reply 'don't ask me' when you do not know the answer to a question, usually when you are annoyed or surprised that you have been asked.
- donald budge — (John) Donald, 1915–2000, U.S. tennis player.
- donald knuth — (person) Donald E. Knuth, the author of the TeX document formatting system, Metafont its font-design program and the 3 volume computer science "Bible" of algorithms, "The Art of Computer Programming". Knuth suggested the name "Backus-Naur Form" and was also involved in the SOL simulation language, and developed the WEB literate programming system. See also MIX, Turingol.
- donationware — (Internet) A variant of freeware that offers an option to its user to donate money to the program's author.
- donatistical — relating to a Donatist or Donatism
- donets basin — a river rising in the SW Russian Federation near Belgorod, flowing SE through Ukraine to the Don River. About 650 miles (1045 km) long.
- doomwatching — the act of watching the environment to warn of and prevent harm
- door curtain — a curtain that fills a doorway
- dopaminergic — activated by or sensitive to dopamine.
- doppelganger — a ghostly double or counterpart of a living person.
- doppleganger — Misspelling of doppelganger.
- dorsiventral — Botany. having distinct dorsal and ventral sides, as most foliage leaves.
- dorsoventral — Zoology. pertaining to the dorsal and ventral aspects of the body; extending from the dorsal to the ventral side: the dorsoventral axis.
- dot notation — (networking) Berkeley Unix notation for an Internet address, consisting of one to four numbers (a "dotted quad") in hexadecimal (leading 0x), octal (leading 0), or (usually) decimal. It represents a 32-bit address. Each leading number represents eight bits of the address (high byte first) and the last number represents the rest. E.g. address 0x25.32.0xab represents 0x252000ab. By far the most common form is four decimal numbers, e.g. 146.169.22.42. Many programs accept an address in dot notation in place of a hostname.
- double agent — a person who spies on a country while pretending to spy for it.
- doubleganger — doppelgänger.
- down and out — downward; going or directed downward: the down escalator.
- down payment — an initial amount paid at the time of purchase, in installment buying, time sales, etc.
- down-and-out — without any money, or means of support, or prospects; destitute; penniless.
- down-at-heel — of a shabby, run-down appearance; seedy: He is rapidly becoming a down-at-heel drifter and a drunk.
- down-hearted — dejected; depressed; discouraged.
- downcastness — The quality of being downcast.
- downloadable — Capable of being downloaded.
- downregulate — To decrease the number of cell receptors by using downregulation.
- draconically — (often lowercase) Draconian.
- draftsperson — a person employed in making mechanical drawings, especially in an architectural or engineering firm.
- dragon light — a herbal remedy for impotence
- dragonslayer — One who slays a dragon.
- drapetomania — (dated) an overwhelming urge to run away (from home, a bad situation, responsibility, etc.).
- drawing room — a formal reception room, especially in an apartment or private house.
- dreadnoughts — Plural form of dreadnought.
- dream vision — a conventional device used in narrative verse, employed especially by medieval poets, that presents a story as told by one who falls asleep and dreams the events of the poem: Dante's Divine Comedy exemplifies the dream vision in its most developed form.
- drift anchor — a sea anchor or drag.
- drop curtain — a curtain that is lowered into position from the flies.
- drop initial — inset initial.
- dual-control — having dual controls
- duodecennial — relating to twelve years
- duplications — Plural form of duplication.
- dwarf cornel — the bunchberry.
- dynamometers — Plural form of dynamometer.
- dynamometric — Relating to dynamometry.
- dysmenorrhea — painful menstruation.
- dystopianism — a society characterized by human misery, as squalor, oppression, disease, and overcrowding.
- early modern — designating or of the period of European history from the end of the Middle Ages (c. 1450) to c. 1750
- earth almond — chufa.
- easting down — the passage eastward from the Cape of Good Hope, as made by a sailing ship bound for Australia or the East Indies.
- ebb and flow — tidal movement
- echinodermal — (zoology) Relating or belonging to the echinoderms.
- edifications — Plural form of edification.