15-letter words containing h, o, p, n
- dystrophication — the process by which a body of water becomes dystrophic.
- edmund randolph — A(sa) Philip, 1889–1979, U.S. labor leader: president of the Brotherhood of Sleeping Car Porters 1925–68.
- edriophthalmian — edriophthalmous
- elephant's-foot — a monocotyledonous plant, Testudinaria elephantipes, of southern Africa, with a very large starchy tuberous stem, covered in corky scales: family Dioscoreaceae
- enantiomorphism — (chemistry) The relationship exhibited by a pair of enantiomorphs.
- enantiomorphous — Of or pertaining to enantiomorphs or enantiomorphism; enantiomorphic.
- encephalization — (biology) the amount of brain mass exceeding that related to an animal's total body mass.
- encephalography — Any of various techniques for recording the structure or electrical activity of the brain.
- encephalopathic — Relating to encephalopathy.
- endolymphangial — (anatomy) Within a lymphatic vessel.
- english sparrow — a small Eurasian weaverbird, Passer domesticus, now established in North America and Australia. It has a brown streaked plumage with grey underparts
- enterohepatitis — dual inflammation of the intestine and liver
- epichlorohydrin — an organic compound used as a solvent in resin-making
- ergatandromorph — an ant with the characteristics of both worker and male
- ethnopsychology — The scientific study of psychological concepts as they exist across different ethnic groups.
- fahnestock clip — a type of terminal using a spring that clamps readily onto a connecting wire.
- for the present — being, existing, or occurring at this time or now; current: increasing respect for the present ruler of the small country.
- for their pains — You say that something was all you got for your pains when you are mentioning the disappointing result of situation into which you put a lot of work or effort.
- fourth position — a position in which the feet are at right angles to the direction of the body, the toes pointing out, with one foot forward and the other foot back.
- franz joseph ii — 1906–1989, prince of Liechtenstein 1938–89.
- frederic chopin — Frédéric François [fred-uh-rik fran-swah,, fred-rik;; French frey-dey-reek frahn-swa] /ˈfrɛd ə rɪk frænˈswɑ,, ˈfrɛd rɪk;; French freɪ deɪˈrik frɑ̃ˈswa/ (Show IPA), 1810–49, Polish composer and pianist, in France after 1831.
- galloping-ghost — Harold ("Red"; "the Galloping Ghost") 1903–1991, U.S. football player.
- geomorphogenist — one who studies, or is an expert in, geomorphogeny
- get the drop on — a small quantity of liquid that falls or is produced in a more or less spherical mass; a liquid globule.
- get the jump on — to spring clear of the ground or other support by a sudden muscular effort; leap: to jump into the air; to jump out a window.
- gigantopithecus — a genus of extinct ape of southern Asia existing during the Pliocene and Pleistocene epochs, known only from very large fossil jaws and teeth and believed to be perhaps the biggest hominoid that ever lived.
- golden pheasant — an Asiatic pheasant, Chrysolophus pictus, having brilliant scarlet, orange, gold, green, and black plumage.
- golden samphire — a Eurasian coastal plant, Inula crithmoides, with fleshy leaves and yellow flower heads: family Asteraceae (composites)
- gramophonically — in a gramophonic manner
- grandparenthood — The state of being a grandparent.
- 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.
- gynandromorphic — (of an organism) Having male and female characteristics.
- 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.
- 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.
- haulage company — a firm that transports goods by lorry
- 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.
- heart operation — a surgical operation performed on the heart
- heart tamponade — tamponade (def 2).
- help oneself to — to serve or provide oneself with (food, etc.)
- hematoporphyrin — a porphyrin made by treating haemoglobin with acid, used to treat cancer in photodynamic therapy
- hepatocarcinoma — (pathology) cancer of the liver.
- 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.
- holding company — a company that controls other companies through stock ownership but that usually does not engage directly in their productive operations (distinguished from parent company).
- holding paddock — a paddock in which cattle or sheep are kept temporarily, as before shearing, etc
- holding pattern — a traffic pattern for aircraft at a specified location (holding point) where they are ordered to remain until permitted to land or proceed.
- honeycomb tripe — a part of the inner lining of the stomach of the steer, calf, hog, or sheep, resembling a honeycomb in appearance and considered a table delicacy.
- hopeful monster — a hypothetical individual organism that, by means of a fortuitous macromutation permitting an adaptive shift to a new mode of life, becomes the founder of a new type of organism and a vehicle of macroevolution.