15-letter words containing a, d, r, i, t
- 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.
- arc de triomphe — the triumphal arch in Paris begun by Napoleon I to commemorate his victories of 1805–6 and completed in 1836
- arrondissements — Plural form of arrondissement.
- ascribed status — the social position assigned to a person on the basis of kinship, ethnic group, sex, etc.
- astrodynamicist — a person who studies astrodynamics
- atlantic ridley — ridley (def 1).
- atlantic-ridley — ridley (def 1).
- attitude survey — a survey of the opinions held by a particular group of people
- audience rating — a figure based on statistical sampling indicating what proportion of the total listening and viewing audience tune in to a specific programme or network
- auditor general — (in Canada) a federal official responsible for auditing government departments and making an annual report
- autodestructive — likely to cause one's own destruction
- 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.
- autotetraploidy — the generation of the tetraploid state, created by the fusing of two nuclei from the same species
- backseat driver — If you refer to a passenger in a car as a backseat driver, they annoy you because they constantly give you advice about how to drive.
- badminton court — the court on which games of badminton are played
- bandpass filter — A bandpass filter is a filter designed to pass all frequencies within a band of frequencies.
- 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
- barbituric acid — a white crystalline solid used in the preparation of barbiturate drugs. Formula: C4H4N2O3
- basic autocoder — Early system on IBM 7070. Listed in CACM 2(5):16 (May 1959).
- bathurst island — an island off the coast of N Nunavut, Canada, in the Arctic Archipelago: present south of the North Magnetic Pole nearby. 7609 sq. mi. (19,707 sq. km).
- bedtime reading — a book, magazine etc read at bedtime
- benedict arnold — Benedict, 1741–1801, American general in the Revolutionary War who became a traitor.
- beside the mark — not striking the point aimed at
- beta-adrenergic — pertaining to or involving beta receptors
- bidirectionally — in a bidirectional manner
- bilateral trade — a system of trading between two countries in which each country attempts to balance its trade with that of the other
- birch partridge — ruffed grouse
- blank cartridge — a cartridge containing powder but no bullet: used in battle practice or as a signal
- blasting powder — a form of gunpowder made with sodium nitrate instead of saltpeter, used chiefly for blasting rock, ore, etc.
- board-certified — A doctor who is board-certified has passed tests and meets the standards of a board of specialists in their area of medicine.
- body toning bar — a weighted exercise bar made of steel encased in a layer of foam, used for toning and strength training.
- brand extension — the practice of using a well-known brand name to promote new products or services in unrelated fields
- brights-disease — a disease characterized by albuminuria and heightened blood pressure.
- bring to a head — to bring or be brought to a crisis
- bronze diabetes — hemochromatosis.
- building trades — the trades and professions concerned with the creation and finishing of buildings, such as carpenters, plasterers, masons, electricians, etc.
- buried treasure — A surprising piece of code found in some program. While usually not wrong, it tends to vary from crufty to bletcherous, and has lain undiscovered only because it was functionally correct, however horrible it is. Used sarcastically, because what is found is anything *but* treasure. Buried treasure almost always needs to be dug up and removed. "I just found that the scheduler sorts its queue using bubble sort! Buried treasure!"
- burt l standish — Burt L. pseudonym of Gilbert Patten.
- cadmean victory — a victory won with great losses to the victors
- calcined baryta — baryta (def 1).
- calcined-baryta — Also called calcined baryta, barium oxide, barium monoxide, barium protoxide. a white or yellowish-white poisonous solid, BaO, highly reactive with water: used chiefly as a dehydrating agent and in the manufacture of glass.
- calculated risk — a chance of failure, the probability of which is estimated before some action is undertaken.
- calendarization — the process of calendarizing
- calf diphtheria — a disease of the throat in young calves caused by Fusobacterium necrophorum, resulting in breathing difficulty and a painful cough
- camphorated oil — a liniment consisting of camphor and peanut oil, used as a counterirritant
- carbazotic acid — picric acid.