12-letter words containing a, p, r, t, i
- curietherapy — a form of radiation therapy using radium
- curtail step — the step or steps at the foot of a flight of stairs, widened at one or both ends and terminated with a scroll
- curtail-step — a horizontal, spiral termination to the lower end of a stair railing.
- curtain pole — a pole from which a curtain is hung in front of a window, door, etc
- cyberspastic — (humour) A person suffering from information overload while browsing the Internet or web. Compare webhead.
- d-s particle — a positively charged meson having a mass 3852 times that of the electron and a mean lifetime of approximately 4.7 X 10 -13 seconds.
- danger point — the point at which something ceases to be safe
- darwin tulip — a class of tulips having a tall stem and broad, bright-colored flowers with a flat, rectangular base.
- day-tripping — to travel as a day-tripper.
- deaspiration — the act of deaspirating
- death spiral — a period of continuous deterioration that leads ultimately to catastrophic failure or destruction
- decrepitated — Simple past tense and past participle of decrepitate.
- decrepitates — Third-person singular simple present indicative form of decrepitate.
- depilatories — Plural form of depilatory.
- deportations — Plural form of deportation.
- depositaries — Plural form of depositary.
- depreciating — Present participle of depreciate.
- depreciation — the reduction in value of a fixed asset due to use, obsolescence, etc
- depreciative — Tending to depreciate (in value etc.).
- depreciatory — tending to depreciate.
- depredations — the act of preying upon or plundering; robbery; ravage.
- deprivations — Plural form of deprivation.
- deuteranopia — a form of colour blindness in which there is a tendency to confuse blues and greens, and greens and reds, and in which sensitivity to green is reduced
- diageotropic — (of a plant part) growing at a right angle to the direction of gravity.
- diastrophism — the process of movement and deformation of the earth's crust that gives rise to large-scale features such as continents, ocean basins, and mountains
- dictatorship — Dictatorship is government by a dictator.
- dictyopteran — any insect of the order Dictyoptera, which comprises the cockroaches and mantises
- diet pyramid — food pyramid (def 2).
- dinner party — social gathering over evening meal
- dinner plate — a plate for holding an individual serving of the main course of a meal.
- dipropellant — bipropellant.
- discorporate — Having no material body.
- disoperation — a relationship between two organisms in a community that is harmful to both
- dispensatory — a book in which the composition, preparation, and uses of medicinal substances are described; a nonofficial pharmacopoeia.
- dispropriate — to deprive of ownership
- disreputable — not reputable; having a bad reputation: a disreputable barroom.
- disreputably — In a disreputable manner.
- distemperate — (obsolete) immoderate.
- drapeability — to cover or hang with cloth or other fabric, especially in graceful folds; adorn with drapery.
- drapetomania — (dated) an overwhelming urge to run away (from home, a bad situation, responsibility, etc.).
- drinks party — a cocktail party
- drop curtain — a curtain that is lowered into position from the flies.
- drop initial — inset initial.
- earsplitting — ear-piercing: an earsplitting explosion.
- earth pillar — a pillar of earthy matter left by erosion of the surrounding ground.
- east prussia — a former province in NE Germany: an enclave separated from Germany by the Polish Corridor; now divided between Poland and the Russian Federation. 14,283 sq. mi. (36,993 sq. km). Capital: Königsberg.
- ectoparasite — an external parasite (opposed to endoparasite).
- elephantbird — Alternative form of elephant bird.
- emancipators — Plural form of emancipator.
- emancipatory — Of or pertaining to emancipation or to an emancipator.