15-letter words containing p, h, o, r
- dystrophication — the process by which a body of water becomes dystrophic.
- echocardiograph — an instrument employing reflected ultrasonic waves to examine the structures and functioning of the heart.
- edmund randolph — A(sa) Philip, 1889–1979, U.S. labor leader: president of the Brotherhood of Sleeping Car Porters 1925–68.
- edriophthalmian — edriophthalmous
- edriophthalmous — (of certain crustaceans) having stalkless eyes
- electromyograph — A device used in electromyography to generate electromyograms.
- electrophoreses — Plural form of electrophoresis.
- electrophoresis — The movement of charged particles in a fluid or gel under the influence of an electric field.
- electrophoretic — Of, pertaining to, or produced by electrophoresis.
- eleutherophobia — the fear of freedom
- eleutherophobic — afraid of freedom
- enantiomorphism — (chemistry) The relationship exhibited by a pair of enantiomorphs.
- enantiomorphous — Of or pertaining to enantiomorphs or enantiomorphism; enantiomorphic.
- encephalography — Any of various techniques for recording the structure or electrical activity of the brain.
- 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
- epikeratophakia — The surgical correction of aphakia. It is a refractive surgical procedure in which a donor cornea is transplanted to the anterior surface of the patient's cornea. A lamellar disc from a donor cornea is placed over the de-epithelialized host cornea and sutured into a prepared groove on the host cornea.
- ergatandromorph — an ant with the characteristics of both worker and male
- fluorophosphate — a salt or ester of a fluorophosphoric acid.
- 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.
- former prophets — a subdivision of the books constituting the second main part of the Hebrew Bible, Joshua, Judges, I-II Samuel, and I-II Kings
- 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.
- fourth republic — the republic established in France in 1945 and replaced by the Fifth Republic in 1958.
- 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.
- free atmosphere — the part of the atmosphere that lies above the frictional influence of the earth's surface.
- fusospirochetal — Relating to fusospirochetes.
- fusospirochetes — Plural form of fusospirochete.
- geodemographics — the study and grouping of the people in a geographical area according to socioeconomic criteria, esp for market research
- geomorphogenist — one who studies, or is an expert in, geomorphogeny
- geomorphologist — A geologist whose speciality is geomorphology.
- geostrophically — By means of, or in terms of, geostrophy.
- get the drop on — a small quantity of liquid that falls or is produced in a more or less spherical mass; a liquid globule.
- glossographical — relating to glossography
- golden samphire — a Eurasian coastal plant, Inula crithmoides, with fleshy leaves and yellow flower heads: family Asteraceae (composites)
- 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.
- 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.
- 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.
- hardhead sponge — any of several commercial sponges, as Spongia officinalis dura, of the West Indies and Central America, having a harsh, fibrous, resilient skeleton.
- hausdorff space — a topological space in which each pair of points can be separated by two disjoint open sets containing the points.