15-letter words containing a, l, p, h
- delta hepatitis — a severe form of hepatitis caused by an incomplete virus (delta virus) that links to the hepatitis B virus for its replication.
- demographically — of or relating to demography, the science of vital and social statistics.
- dephlogisticate — to reduce or remove inflammation from
- dephosphorylate — to remove a phosphate group from (an organic compound)
- dermatoglyphics — the lines forming a skin pattern, esp on the palms of the hands and soles of the feet
- developing bath — an amount of photographic developer into which photographic film or paper is inserted
- diaheliotropism — the tendency among plants to respond to the light of the sun by orienting their leaves perpendicular to the sun's rays, such that the upper surface of the leaves receives maximum light
- diastrophically — in a diastrophic fashion
- dolichocephalic — long-headed; having a cephalic index of 75 and under.
- drop handlebars — aerodynamic handlebars that drop down and curve towards the rider at the ends rather than turning upwards as on conventional bicycles
- 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.
- elephant's-foot — a monocotyledonous plant, Testudinaria elephantipes, of southern Africa, with a very large starchy tuberous stem, covered in corky scales: family Dioscoreaceae
- eleutherophobia — the fear of freedom
- 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
- english speaker — a person who speaks English as a first, or second mother tongue
- euphemistically — In a euphemistic manner.
- fahnestock clip — a type of terminal using a spring that clamps readily onto a connecting wire.
- finger alphabet — a series of shapes made by the fingers that indicate letters of an alphabet and can be used in fingerspelling for the deaf
- fluorophosphate — a salt or ester of a fluorophosphoric acid.
- fusospirochetal — Relating to fusospirochetes.
- galloping-ghost — Harold ("Red"; "the Galloping Ghost") 1903–1991, U.S. football player.
- geostrophically — By means of, or in terms of, geostrophy.
- gestalt therapy — holistic psychotherapy
- glossographical — relating to glossography
- 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
- 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.
- graphic display — the way in which line drawings and text are displayed
- graphologically — In terms of or by means of graphology.
- 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.
- hapax legomenon — a word or phrase that appears only once in a manuscript, document, or particular area of literature.
- 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
- 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.
- 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.
- heath speedwell — a temperate scrophulariaceous plant, Veronica officinalis, having small blue or pinkish white flowers
- hemel hempstead — a town in W Hertfordshire, in SE England.
- hepaticological — of or relating to hepaticology