15-letter words containing n, o, a, d
- doomsday weapon — any weapon of extreme lethal or destructive power; superweapon
- dorsibranchiate — having branchiae or gills along the back
- dorsiventrality — The quality of being dorsiventral.
- dorsoventrality — Zoology. pertaining to the dorsal and ventral aspects of the body; extending from the dorsal to the ventral side: the dorsoventral axis.
- dose equivalent — a unit that quantifies the biological effectiveness of an absorbed dose of ionizing radiation, obtained by multiplying the absorbed dose by dimensionless factors that account for the kind of radiation, its energy, and the nature of the absorber: measured in Sievert or rem.
- double in brass — twice as large, heavy, strong, etc.; twofold in size, amount, number, extent, etc.: a double portion; a new house double the size of the old one.
- double integral — an integral in which the integrand involves a function of two variables and that requires two applications of the integration process to evaluate.
- double negation — the principle that a statement is equivalent to the denial of its negation, as it is not the case that John is not here meaning John is here
- double negative — a syntactic construction in which two negative words are used in the same clause to express a single negation.
- double saucepan — a cooking utensil consisting of two saucepans, one fitting inside the other. The bottom saucepan contains water that, while boiling, gently heats food in the upper pan
- double standard — any code or set of principles containing different provisions for one group of people than for another, especially an unwritten code of sexual behavior permitting men more freedom than women. Compare single standard (def 1).
- doublet pattern — a pattern, as on a fabric, in which a figure or group is duplicated in reverse order on the opposite side of a centerline.
- doubting thomas — a person who refuses to believe without proof; skeptic. John 20:24–29.
- dougherty wagon — a horse- or mule-drawn passenger wagon having doors on the side, transverse seats, and canvas sides that can be rolled down.
- downheartedness — The characteristic of being downhearted; sadness.
- downward closed — closure
- dr. strangelove — a person, especially a military or government official, who advocates initiating nuclear warfare.
- drag one's feet — to draw with force, effort, or difficulty; pull heavily or slowly along; haul; trail: They dragged the carpet out of the house.
- draughtproofing — Present participle of draughtproof.
- draw oneself up — to assume a straighter posture; stand or sit straight
- drawing account — an account used by a partner or employee for cash withdrawals.
- drift indicator — an instrument that indicates the amount of drift of an aircraft.
- drip irrigation — a system of crop irrigation involving the controlled delivery of water directly to individual plants through a network of tubes or pipes.
- drop handlebars — aerodynamic handlebars that drop down and curve towards the rider at the ends rather than turning upwards as on conventional bicycles
- dual admissions — a system whereby students attaining less good marks than what is required are offered a place provided they successfully complete another course first to improve some aspect of their work
- dwarf poinciana — royal poinciana.
- dynamic routing — (networking) (Or "adaptive routing") Routing that adjusts automatically to network topology or traffic changes.
- dynamic scoping — dynamic scope
- dysfunctionally — not performing normally, as an organ or structure of the body; malfunctioning.
- dystrophication — the process by which a body of water becomes dystrophic.
- early admission — a plan for admission to colleges in the US, in which students apply to colleges earlier in the year than is customary and receive their results earlier too
- east longmeadow — a city in SW Massachusetts.
- east providence — a town in NE Rhode Island, near Providence.
- eat one's words — a unit of language, consisting of one or more spoken sounds or their written representation, that functions as a principal carrier of meaning. Words are composed of one or more morphemes and are either the smallest units susceptible of independent use or consist of two or three such units combined under certain linking conditions, as with the loss of primary accent that distinguishes black·bird· from black· bird·. Words are usually separated by spaces in writing, and are distinguished phonologically, as by accent, in many languages.
- eating disorder — any of various disorders, as anorexia nervosa or bulimia, characterized by severe disturbances in eating habits.
- echinodermatous — belonging or pertaining to the echinoderms.
- edgar allan poe — Edgar Allan, 1809–49, U.S. poet, short-story writer, and critic.
- edict of nantes — a seaport in and the capital of Loire-Atlantique, in W France, at the mouth of the Loire River.
- edmund randolph — A(sa) Philip, 1889–1979, U.S. labor leader: president of the Brotherhood of Sleeping Car Porters 1925–68.
- edriophthalmian — edriophthalmous
- elastic rebound — a theory of earthquakes that envisages gradual deformation of the fault zone without fault slippage until friction is overcome, when the fault suddenly slips to produce the earthquake
- electrodynamics — The branch of mechanics concerned with the interaction of electric currents with magnetic fields or with other electric currents.
- encyclopaedical — Of or pertaining to encyclopaediae.
- endocannabinoid — An endogenous cannabinoid, that is one produced by the body.
- endocannibalism — A form of cannibalism, the eating of dead members of one's own social group, often associated with spiritual beliefs.
- endocrine gland — anatomy: hormone-secreting gland
- endolymphangial — (anatomy) Within a lymphatic vessel.
- endomycorrhizal — Of or pertaining to endomycorrhiza.
- enteropeptidase — Enterokinase.
- epsilon squared — (jargon) A quantity even smaller than epsilon, as small in comparison to epsilon as epsilon is to something normal; completely negligible. If you buy a supercomputer for a million dollars, the cost of the thousand-dollar terminal to go with it is epsilon, and the cost of the ten-dollar cable to connect them is epsilon squared. Compare lost in the underflow, lost in the noise.