15-letter words containing o, d, t
- amphiarthrodial — a joint permitting only slight motion, as that between the vertebrae.
- an axe to grind — an ulterior motive
- ancient of days — a name for God, originating in the Authorized Version of the Old Testament (Daniel 7:9)
- andrew of crete — a.d. c650–730, Greek poet and Orthodox archbishop of Crete.
- androstenedione — a weak hormone, C19H26O2, produced by the ovaries, testes, and adrenal glands as a precursor to estrogen, testosterone, etc.: formerly taken in a concentrated tablet or capsule form as by some bodybuilders
- answer the door — When you answer the door, you go and open the door because a visitor has knocked on it or rung the bell.
- anthony vandyke — Sir Anthony, Van Dyck, Sir Anthony.
- anti-productive — having the power of producing; generative; creative: a productive effort.
- antiaphrodisiac — something that represses sexual desire
- anticardiolipin — (medicine, immunology) Directed against cardiolipin.
- anticoincidence — of or relating to an electronic circuit that produces an output pulse if one but not both of its input terminals receives a pulse within a specified interval of time
- antidevelopment — (of a group) opposed to development
- antieducational — opposing the provision of knowledge
- antitraditional — opposed to or acting with disregard for tradition
- aphrodite terra — a large plateau region that stretches approximately halfway around the middle latitude of Venus.
- apollo asteroid — one of a number of asteroids whose orbits cross that of the earth.
- apostles' creed — a concise statement of Christian beliefs dating from about 500 ad, traditionally ascribed to the Apostles
- arc de triomphe — the triumphal arch in Paris begun by Napoleon I to commemorate his victories of 1805–6 and completed in 1836
- armaments depot — a store for armaments
- around the bend — to force (an object, especially a long or thin one) from a straight form into a curved or angular one, or from a curved or angular form into some different form: to bend an iron rod into a hoop.
- around the horn — (thrown) from third base to second to first in trying for a double play
- arrondissements — Plural form of arrondissement.
- astrodynamicist — a person who studies astrodynamics
- at death's door — If you say that someone is at death's door, you mean they are very ill indeed and likely to die.
- at the hands of — If someone experiences a particular kind of treatment, especially unpleasant treatment, at the hands of a person or organization, they receive it from them.
- audio equipment — electrical devices used to play or record sound
- auditor general — (in Canada) a federal official responsible for auditing government departments and making an annual report
- audubon society — a North American organization devoted to the conservancy of birds
- augmented roman — a writing system based on an expanded English alphabet, consisting of 43 characters representing different phonemes of spoken English, used for teaching beginners to read. Abbreviation: I.T.A., i.t.a.
- autodestructive — likely to cause one's own destruction
- autodidacticism — any self-directed learning or self-education
- automatic drive — an automotive transmission requiring either very little or no manual shifting of gears.
- autoradiographs — Plural form of autoradiograph.
- autoradiography — the technique or process of making autoradiographs.
- autoschediastic — offhand, with little forethought or preparation
- autotetraploidy — the generation of the tetraploid state, created by the fusing of two nuclei from the same species
- azerty keyboard — a common European version of typewriter keyboard layout with the characters a, z, e, r, t, and y positioned on the top row of alphabetic characters at the left side of the keyboard
- baconian method — induction (def 4a).
- badminton court — the court on which games of badminton are played
- bag on the side — An extension to an established hack that is supposed to add some functionality to the original. Usually derogatory, implying that the original was being overextended and should have been thrown away, and the new product is ugly, inelegant, or bloated. Also "to hang a bag on the side [of]". "C++? That's just a bag on the side of C." "They want me to hang a bag on the side of the accounting system."
- bandstop filter — A bandstop filter is a filter designed to eliminate all frequencies within a band of frequencies.
- banking product — one of the various services offered by a bank to its customers: mortgages, loans, insurance etc
- barefoot doctor — (esp in developing countries) a worker trained as a medical auxiliary in a rural area who dispenses medicine, gives first aid, assists at childbirth, etc
- barn-door skate — an Atlantic skate, Raja laevis, that grows to a length of 4 feet (1.2 meters) or more.
- basic autocoder — Early system on IBM 7070. Listed in CACM 2(5):16 (May 1959).
- basic education — (in India) education in which all teaching is correlated with the learning of a craft
- basidiomycetous — belonging or pertaining to the basidiomycetes.
- be of two minds — to be undecided or irresolute
- be on the skids — to be on the decline or downgrade; meet with failure
- beast of burden — A beast of burden is an animal such as an ox or a donkey that is used for carrying or pulling things.