17-letter words containing r, h, i
- anti-humanitarian — having concern for or helping to improve the welfare and happiness of people.
- antiauthoritarian — Opposed to authority.
- antihyperglycemic — (of a medication or treatment) Tending to reduce hyperglycemia (high blood sugar, characteristic of diabetes).
- antihypertensives — Plural form of antihypertensive.
- antitwilight arch — a narrow band, pink or with a purple cast, that sometimes appears at twilight just above the horizon opposite the sun.
- anytime algorithm — (algorithm) An algorithm that returns a sequence of approximations to the correct answer such that each approximation is no worse than the previous one, i.e. the algorithm can be stopped at _any time_. x = (x + b / x) / 2 Each new x is closer to the square root than the previous one. Applications might include a real-time control system or a chess program that is allowed a fixed thinking time.
- apostolic fathers — the Fathers of the early Church who immediately followed the Apostles
- appalachian trail — hiking trail extending from central Me. to N Ga., along the Appalachian Mountains: c. 2,050 mi (3,299 km)
- archconfraternity — a confraternity having the right to associate itself with confraternities that are similar to it, and to impart to them its privileges and indulgences.
- archconservatives — Plural form of archconservative.
- archimedes' screw — an ancient type of water-lifting device making use of a spiral passage in an inclined cylinder. The water is raised when the spiral is rotated
- architect's table — a table having a surface consisting of a drawing board adjustable to various heights and angles.
- architectonically — In terms of architectonics.
- aristolochiaceous — belonging to the Aristolochiaceae, the birthwort family of plants.
- arithmetic-series — a sequence in which each term is obtained by the addition of a constant number to the preceding term, as 1, 4, 7, 10, 13, and 6, 1, −4, −9, −14.
- arlington heights — village in NE Ill.: suburb of Chicago: pop. 76,000
- armchair shopping — buying goods using a computer, telephone, or television in the home or via the postal system
- as the crow flies — If you say that a place is a particular distance away as the crow flies, you mean that it is that distance away measured in a straight line.
- assistant teacher — a person who assists a teacher in their work or who is not yet fully qualified as a teacher
- at the service of — To be at the service of a person or organization means to be available to help or be used by that person or organization.
- at their own game — If you beat someone at their own game, you use the same methods that they have used, but more successfully, so that you gain an advantage over them.
- attraction sphere — centrosphere (sense 1)
- audience research — research into the make-up and habits of the audience of a particular television or radio programme or network
- australopithecine — any of various extinct apelike primates of the genus Australopithecus and related genera, remains of which have been discovered in southern and E Africa. Some species are estimated to be over 4.5 million years old
- authoritativeness — having due authority; having the sanction or weight of authority: an authoritative opinion.
- authority control — the establishment and maintainance of consistent forms of terms, as of names, subjects, and titles, to be used as headings in bibliographic records.
- babi yar symphony — a symphony (1962) by Dimitri Dimitrievich Shostakovich.
- back on the rails — If something is back on the rails, it is beginning to be successful again after a period when it almost failed.
- backward chaining — (algorithm) An algorithm for proving a goal by recursively breaking it down into sub-goals and trying to prove these until facts are reached. Facts are goals with no sub-goals which are therefore always true. Backward training is the program execution mechanism used by most logic programming language like Prolog. Opposite: forward chaining.
- bacteriorhodopsin — a purple protein containing retinal and found in the plasma membrane of certain bacteria (genus Halobacterium): it directly supplies electrochemical energy from sunlight
- bartholin's gland — either of two small glands near the vaginal opening: during sexual excitement they secrete a mucous lubricating substance
- baseboard heating — a heating system by pipes, through which steam or hot water circulates, near the base of the walls of rooms
- bathroom fittings — plumbing fixtures or accessories suitable for use in a bathroom
- be over the limit — If someone is over the limit, they have drunk more alcohol than they are legally allowed to when driving a vehicle.
- behaviour therapy — any of various means of treating psychological disorders, such as desensitization, aversion therapy, and instrumental conditioning, that depend on the patient systematically learning new modes of behaviour
- bell-hanger's bit — a bit for drilling small holes through studs or the like.
- belted kingfisher — a grayish-blue, North American kingfisher, Ceryle alcyon, having a white breast marked with a grayish-blue band.
- bergisch gladbach — city in W Germany, in the state of North Rhine-Westphalia: pop. 105,000
- bergisch-gladbach — an industrial city in W Germany, near Cologne.
- best first search — (algorithm) A graph search algorithm which optimises breadth first search by ordering all current paths according to some heuristic. The heuristic attempts to predict how close the end of a path is to a solution. Paths which are judged to be closer to a solution are extended first. See also beam search, hill climbing.
- bighorn mountains — range of the Rocky Mountains in N Wyo. and S Mont.: highest peak, 13,165 ft (4,013 m)
- biological father — the man whose semen fertilized the ovum from which a child was born
- biological mother — the mother who gave birth to a child
- biological rhythm — biorhythm.
- biopharmaceutical — of or relating to drugs produced using biotechnology
- bird's-eye chilli — a small red hot-tasting chilli
- birth certificate — Your birth certificate is an official document which gives details of your birth, such as the date and place of your birth, and the names of your parents.
- birth of a nation — an American film (1915), directed by D. W. Griffith.
- blue-headed vireo — solitary vireo.
- board-and-shingle — a small dwelling with wooden walls and a shingle roof