21-letter words containing a, e, r, o, p, h
- reinforcement therapy — a behavior modification technique in which appropriate behavior is strengthened through systematic reinforcement.
- replacement algorithm — The method used to determine which entry in an associative cache to flush to main memory when it is desired to cache a new block of data. The "least recently used" algorithm flushed the block which has not been accessed for the longest time. A random replacement algorithm picks any block with equal probability.
- reverse polish syntax — postfix notation
- schlieren photography — a type of photography which records schlieren
- scorched earth policy — a military practice of devastating the property and agriculture of an area before abandoning it to an advancing enemy.
- scorched-earth policy — a military practice of devastating the property and agriculture of an area before abandoning it to an advancing enemy.
- sheppard's correction — a method of correcting the bias in standard deviations and higher moments of distributions that arises from grouping values of the variable.
- single spanish burton — a tackle having a runner as well as the fall supporting the load, giving a mechanical advantage of three, neglecting friction.
- somatotrophic-hormone — a hormone secreted by the anterior pituitary gland, that stimulates growth in humans.
- south pacific current — an ocean current that flows E in the South Pacific Ocean parallel to the Antarctic Circumpolar Current.
- space shuttle orbiter — orbiter (def 1).
- spherical coordinates — Usually, spherical coordinates. any of three coordinates used to locate a point in space by the length of its radius vector and the angles this vector makes with two perpendicular polar planes.
- strachey, christopher — Christopher Strachey
- sympathetic vibration — a vibration induced by resonance.
- the acting profession — actors considered as a group
- the apple of your eye — If you say that someone is the apple of your eye, you mean that they are very important to you and you are extremely fond of them.
- the central provinces — the Canadian provinces of Ontario and Quebec
- the cream of the crop — You can refer to the best people or things of a particular kind as the cream of the crop.
- the joker in the pack — If you describe someone or something as the joker in the pack, you mean that they are different from the other people or things in their group, and can be unpredictable.
- the press association — the national news agency for the United Kingdom and Ireland
- the probation service — a criminal justice service that is mainly responsible for dealing with offenders by placing them under the supervision of a probation officer
- the shipping forecast — a radio broadcast made by the BBC of weather reports and forecasts for the seas around the British Isles
- theater of operations — the part of the theater of war, including a combat zone and a communications zone, that is engaged in military operations and their support.
- theoretical physicist — a scientist who studies theoretical physics
- therapeutic community — a group-based form of therapy for mental disorders, sometimes residential
- thermal decomposition — Thermal decomposition is the process in which a chemical species breaks down when its temperature is increased.
- thermal power station — a power station in which heat is converted into electricity
- third party procedure — impleader.
- threshold wage policy — a policy whereby wages are increased in accordance with inflation
- to fall into the trap — If someone falls into the trap of doing something, they think or behave in a way which is not wise or sensible.
- to mix your metaphors — If you mix your metaphors, you use two conflicting metaphors. People do this accidentally, or sometimes deliberately as a joke.
- to play the race card — if someone plays the race card they bring up the issue of race in a discussion, perhaps for sympathy or to seek popularity by appealing to racist sentiment
- triple superphosphate — superphosphate (def 2).
- triple-superphosphate — Also called acid phosphate. a mixture of calcium acid phosphate and calcium sulfate prepared by treating phosphate rock with sulfuric acid: used chiefly as a fertilizer.
- what price something? — what are the chances of something happening now?
- whip-and-tongue graft — a graft prepared by cutting both the scion and the stock in a sloping direction and inserting a tongue in the scion into a slit in the stock.
- white-crowned sparrow — a North American sparrow, Zonotrichia leucophrys, having black and white stripes on the head.
- wholesale price index — an indicator of price changes in the wholesale market
- wildlife photographer — someone that specializes in taking photographs of wild animals, especially in their natural habitats, and plants
- writ of habeas corpus — law: petition for hearing