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15-letter words containing p, h

  • golden samphire — a Eurasian coastal plant, Inula crithmoides, with fleshy leaves and yellow flower heads: family Asteraceae (composites)
  • good-fellowship — a pleasant, convivial spirit; comradeship; geniality.
  • gopher tortoise — any North American burrowing tortoise of the genus Gopherus, especially G. polyphemus, of the southeastern U.S.: several species are now reduced in number.
  • gramophonically — in a gramophonic manner
  • grandparenthood — The state of being a grandparent.
  • grapes of wrath — a novel (1939) by John Steinbeck.
  • graph colouring — (application)   A constraint-satisfaction problem often used as a test case in research, which also turns out to be equivalent to certain real-world problems (e.g. register allocation). Given a connected graph and a fixed number of colours, the problem is to assign a colour to each node, subject to the constraint that any two connected nodes cannot be assigned the same colour. This is an example of an NP-complete problem. See also four colour map theorem.
  • graph reduction — A technique invented by Chris Wadsworth where an expression is represented as a directed graph (usually drawn as an inverted tree). Each node represents a function call and its subtrees represent the arguments to that function. Subtrees are replaced by the expansion or value of the expression they represent. This is repeated until the tree has been reduced to a value with no more function calls (a normal form). In contrast to string reduction, graph reduction has the advantage that common subexpressions are represented as pointers to a single instance of the expression which is only reduced once. It is the most commonly used technique for implementing lazy evaluation.
  • graphic display — the way in which line drawings and text are displayed
  • graphic granite — a pegmatite that has crystals of gray quartz imbedded in white or pink microcline in such a manner that they resemble cuneiform writing.
  • graphologically — In terms of or by means of graphology.
  • grasshopper pie — a custardlike pie, flavored and colored with green crème de menthe and served in a graham-cracker crust.
  • group therapist — a psychotherapist who conducts group therapy
  • gynandromorphic — (of an organism) Having male and female characteristics.
  • hair specialist — an expert in the treatment and care of human hair
  • hair transplant — the surgical transfer of clumps of skin with hair or of viable hair follicles from one site of the body to another, usually performed to correct baldness.
  • half-wave plate — a crystal thin enough to cause a phase difference of 180° between the ordinary and extraordinary rays of polarized light, thereby changing the direction of the plane of polarization.
  • halting problem — The problem of determining in advance whether a particular program or algorithm will terminate or run forever. The halting problem is the canonical example of a provably unsolvable problem. Obviously any attempt to answer the question by actually executing the algorithm or simulating each step of its execution will only give an answer if the algorithm under consideration does terminate, otherwise the algorithm attempting to answer the question will itself run forever. Some special cases of the halting problem are partially solvable given sufficient resources. For example, if it is possible to record the complete state of the execution of the algorithm at each step and the current state is ever identical to some previous state then the algorithm is in a loop. This might require an arbitrary amount of storage however. Alternatively, if there are at most N possible different states then the algorithm can run for at most N steps without looping. A program analysis called termination analysis attempts to answer this question for limited kinds of input algorithm.
  • hampstead heath — a popular recreation area near Hampstead in N London
  • hapax legomenon — a word or phrase that appears only once in a manuscript, document, or particular area of literature.
  • hardhead sponge — any of several commercial sponges, as Spongia officinalis dura, of the West Indies and Central America, having a harsh, fibrous, resilient skeleton.
  • hardship clause — a clause in a contract which covers unforeseen events that would make it more difficult for one party to complete the contract, and in which case offers alternative terms
  • hardy perennial — a plant that lasts three seasons or more and that can withstand freezing temperatures
  • haulage company — a firm that transports goods by lorry
  • hausdorff space — a topological space in which each pair of points can be separated by two disjoint open sets containing the points.
  • hautes-pyrenees — a department in SW France. 1751 sq. mi. (4535 sq. km). Capital: Tarbes.
  • have (down) pat — to know or have memorized thoroughly
  • have one's pick — If you have your pick of a group of things, you are able to choose any of them that you want.
  • have to lump it — If you say that someone will have to lump it, you mean that they must accept a situation or decision whether they like it or not.
  • hawaiian pidgin — an English-based creole widely spoken in Hawaii.
  • head-up display — an electronic display of data from instruments or other sources projected at eye level so that a driver or pilot sees it without looking away from the road or course. Abbreviation: HUD.
  • heart operation — a surgical operation performed on the heart
  • heart tamponade — tamponade (def 2).
  • heath speedwell — a temperate scrophulariaceous plant, Veronica officinalis, having small blue or pinkish white flowers
  • height-to-paper — the standard height of type, measured from the foot to the face, in the U.S. 0.918 of an inch (2.33 cm).
  • helicopter view — an overview of a situation without any details
  • help oneself to — to serve or provide oneself with (food, etc.)
  • hematoporphyria — porphyria.
  • hematoporphyrin — a porphyrin made by treating haemoglobin with acid, used to treat cancer in photodynamic therapy
  • hemel hempstead — a town in W Hertfordshire, in SE England.
  • hemicryptophyte — any perennial plant that bears its overwintering buds at soil level, where they are often partly covered by surface debris
  • hepaticological — of or relating to hepaticology
  • hepatocarcinoma — (pathology) cancer of the liver.
  • hermaphroditism — the condition of being a hermaphrodite.
  • herod agrippa i — 10 bc–44 ad, king of Judaea (41–44), grandson of Herod (the Great). A friend of Caligula and Claudius, he imprisoned Saint Peter and executed Saint James
  • herpes labialis — oral herpes.
  • hewlett-packard — (HP) Hewlett-Packard designs, manufactures and services electronic products and systems for measurement, computation and communications. The company's products and services are used in industry, business, engineering, science, medicine and education in approximately 110 countries. HP was founded in 1939 and employs 96600 people, 58900 in the USA. They have manufacturing and R&D establishments in 54 cities in 16 countries and approximately 600 sales and service offices in 110 countries. Their revenue (in 1992/1993?) was $20.3 billion. The Chief Executive Officer is Lewis E. Platt. HP's stock is traded on the New York Stock Exchange and the Pacific, Tokyo, London, Frankfurt, Zurich and Paris exchanges. Quarterly sales $6053M, profits $347M (Aug 1994).
  • hexachlorophene — a white, crystalline powder, C 13 Cl 6 H 6 O 2 , insoluble in water: used as an antibacterial agent chiefly in toothpastes and soaps.
  • hieroglyphology — the study of hieroglyphic writing.
  • high priesthood — the condition or office of a high priest.
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