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17-letter words containing p, i, l, g, r

  • gold import point — an exchange rate at which it is as cheap to settle international accounts by importing gold bullion as by selling bills of exchange
  • golf ball printer — IBM 2741
  • grapefruit league — a series of training games played by major-league teams before the opening of the season (so named because they take place in the citrus-growing South, as in Florida).
  • graphic equalizer — an equalizer in an audio system that is controlled by sliders that show graphically and correct the frequency response within the preset frequency range.
  • gridiron pendulum — a clock pendulum having, as part of its shaft, an arrangement of brass and steel rods having different coefficients of expansion, such that the pendulum has the same length at any temperature.
  • hippocampal gyrus — a convolution on the inner surface of the temporal lobe of the cerebrum, bordering the hippocampus.
  • historiographical — the body of literature dealing with historical matters; histories collectively.
  • holding operation — a plan or procedure devised to prolong the existing situation
  • hospital gangrene — Pathology. a contagious, often fatal gangrene, especially involving amputation stumps and war wounds, occurring usually in crowded, ill-kept hospitals, and caused by putrefactive bacteria.
  • huygens principle — the principle that all points on a wave front of light are sources of secondary waves and that surfaces tangential to these waves define the position of the wave front at any point in time.
  • hydrogen sulphide — Chemistry
  • hyper-intelligent — having good understanding or a high mental capacity; quick to comprehend, as persons or animals: an intelligent student.
  • illegal procedure — a penalty assessed against the offensive team for a technical rules violation, as in assuming an illegal formation.
  • impossible figure — a picture of an object that at first sight looks three-dimensional but cannot be a two-dimensional projection of a real three-dimensional object, for example a picture of a staircase that re-enters itself while appearing to ascend continuously
  • improper integral — Also called infinite integral. a definite integral in which one or both of the limits of integration is infinite.
  • inspector general — a comedy (1836) by Gogol.
  • inspector-general — a comedy (1836) by Gogol.
  • king philip's war — the war (1675–76) between New England colonists and a confederation of Indians under their leader, King Philip.
  • legal proceedings — court case
  • lepidopterologist — One who studies lepidopterology.
  • let something rip — If you let something rip, you do it as quickly or as forcefully as possible. You can say 'let it rip' or 'let her rip' to someone when you want them to make a vehicle go as fast as it possibly can.
  • lexicographically — the writing, editing, or compiling of dictionaries.
  • lighthouse keeper — a person who mans a lighthouse and makes sure that the light is working properly
  • ligurian republic — the republic in NW Italy set up by Napoleon in 1797, incorporated into France in 1805, and united with the Kingdom of Sardinia in 1814.
  • literacy campaign — a campaign designed to reduce illiteracy and promote literacy in a country, area, etc
  • lithostratigraphy — the study or character of stratified rocks based solely on their physical and petrographic features.
  • logic programming — (artificial intelligence, programming, language)   A declarative, relational style of programming based on first-order logic. The original logic programming language was Prolog. The concept is based on Horn clauses. The programmer writes a "database" of "facts", e.g. wet(water). ("water is wet") and "rules", e.g. mortal(X) :- human(X). ("X is mortal is implied by X is human"). Facts and rules are collectively known as "clauses". The user supplies a "goal" which the system attempts to prove using "resolution" or "backward chaining". This involves matching the current goal against each fact or the left hand side of each rule using "unification". If the goal matches a fact, the goal succeeds; if it matches a rule then the process recurses, taking each sub-goal on the right hand side of the rule as the current goal. If all sub-goals succeed then the rule succeeds. Each time a possible clause is chosen, a "choice point" is created on a stack. If subsequent resolution fails then control eventually returns to the choice point and subsequent clauses are tried. This is known as "backtracking". Clauses may contain logic variables which take on any value necessary to make the fact or the left hand side of the rule match a goal. Unification binds these variables to the corresponding subterms of the goal. Such bindings are associated with the choice point at which the clause was chosen and are undone when backtracking reaches that choice point. The user is informed of the success or failure of his first goal and if it succeeds and contains variables he is told what values of those variables caused it to succeed. He can then ask for alternative solutions.
  • logical operation — Boolean operation.
  • lymphangiographic — Relating to lymphangiography.
  • malagasy republic — former name of Madagascar.
  • malay archipelago — an extensive island group in the Indian and Pacific oceans, SE of Asia, including the Greater and Lesser Sunda Islands, the Moluccas, and the Philippines.
  • manpower planning — a procedure used in organizations to balance future requirements for all levels of employee with the availability of such employees
  • methylidyne group — the trivalent group ≡CH.
  • micropaleontology — the branch of paleontology dealing with the study of microscopic fossils.
  • middle-age spread — an increase in bulk, especially in the waist and buttocks, associated with the onset of middle age and the body's decreasing ability to metabolize calories efficiently.
  • multiple cropping — the use of the same field for two or more crops, whether of the same or of different kinds, successively during a single year.
  • multiple integral — an integral in which the integrand involves a function of more than one variable and which requires for evaluation repetition of the integration process.
  • negative particle — a word that indicates negativity, for example 'not' in English or 'ne pas' in French
  • negative polarity — the grammatical character of a word or phrase, such as ever or any, that may normally be used only in a semantically or syntactically negative or interrogative context
  • neuropathological — (medicine) Of, pertaining to, or arising from neuropathology, the pathology of nerve tissue.
  • neurophysiologist — the branch of physiology dealing with the functions of the nervous system.
  • neuropsychologist — A neurologist or psychologist whose speciality is neuropsychology.
  • oceanographically — In terms of oceanography.
  • old age pensioner — An old age pensioner is a person who is old enough to receive an pension from their employer or the government.
  • painted greenling — a greenling, Oxylebius pictus, inhabiting the Pacific coastal waters of North America, having a whitish body marked with black bands.
  • paleobiogeography — the study of the distribution of ancient plants and animals and their relation to ancient geographic features.
  • paralysis agitans — Parkinson's disease
  • parathyroid gland — any of several small oval glands usually lying near or embedded in the thyroid gland.
  • partially sighted — unable to see properly so that even with corrective aids normal activities are prevented or seriously hindered
  • pascal's triangle — a triangular arrangement of the binomial coefficients of the expansion (x + y) n for positive integral values of n.
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