22-letter words containing h, a, i, r, t, l
- a lump in one's throat — a tight dry feeling in one's throat, usually caused by great emotion
- alfred north whitehead — Alfred North, 1861–1947, English philosopher and mathematician, in the U.S. after 1924.
- alkaline earth element — any of the divalent electropositive metals beryllium, magnesium, calcium, strontium, barium, and radium, belonging to group 2A of the periodic table
- alpha-naphthylthiourea — ANTU.
- alternative hypothesis — the hypothesis that given data do not conform with a given null hypothesis: the null hypothesis is accepted only if its probability exceeds a predetermined significance level
- alternative technology — a form of technology that challenges conventional technology, often being promoted as more in harmony with nature
- anatolian shepherd dog — a large powerfully-built dog of a breed with a large head and a short dense cream or fawn coat, originally used for guarding sheep
- androcles and the lion — a comedy (1913) by G. B. Shaw.
- animal rights movement — a group of people who campaign for the rights of animals to be protected from exploitation and abuse by humans
- annihilation radiation — electromagnetic radiation produced by the coalescence and mutual annihilation of a positron and an electron, each pair forming two photons having a minimum energy of 0.5 million electron volts each.
- annotated bibliography — list of reference works
- antediluvian patriarch — See under patriarch (def 1).
- antiestablishmentarian — a person who supports or advocates antiestablishmentarianism.
- articulatory phonetics — the branch of phonetics concerned with the production of speech sounds
- bacillus thuringiensis — a bacterium used in genetically altered form in the biological control of budworms, gypsy moth larvae, Japanese beetles, and other insect pests. Abbreviation: B.t.
- bleeding-heart liberal — a person of left-wing or liberal views who is deemed to be excessively soft-hearted
- brachiocephalic artery — a major artery, arising from the arch of the aorta, that supplies blood to the right arm and the head.
- british library method — (algorithm) Brute force searching. According to legends circulating in the 1970s, in the British Library books are searched for by examining each book sequentially in the first shelf, then the next shelf, continuing until the book is found or the entire library has been searched. The term was referred to in a Dutch coursebook, "Inleiding In De Informatica" (Introduction to Informatics) from a course given by C.H.A. Koster and Th.A. Zoethout. This was based on a course given at the TU Berlin.
- british national party — a far-right political party
- british virgin islands — a UK Overseas Territory in the Caribbean, consisting of 36 islands in the E Virgin Islands: formerly part of the Federation of the Leeward Islands (1871–1956). Capital: Road Town, on Tortola. Pop: 31 912 (2013 est). Area: 153 sq km (59 sq miles)
- chlorotrifluoromethane — a colorless gas, CClF 3 , used chiefly as a refrigerant, in the hardening of metals, and in pharmaceutical processing.
- chromosomal aberration — any irregularity or abnormality of chromosome distribution, number, structure, or arrangement.
- client-centred therapy — a form of psychotherapy in which the therapist makes no attempt to interpret what the patient says but encourages him or her to develop his or her own attitudes and insights, often by questioning
- color graphics adapter — (hardware, graphics) (CGA) One of IBM's earliest hardware video display standards for use in IBM PCs. CGA can display 80*25 or 40*25 text in 16 colors, 640*200 pixels of graphics in two colors or 320*200 in four colors (IBM PC video modes 0-6). It is now obsolete.
- comparative psychology — the study of the similarities and differences in the behaviour of different species
- complete metamorphosis — physical changes in the development of certain insects that include egg, larva, pupa, and adult stages, as in beetles, moths, or bees
- constitutional monarch — the sovereign in a constitutional monarchy
- critical path analysis — a technique for planning complex projects by analysing alternative systems with reference to the critical path, which is the sequence of stages requiring the longest time
- dalton's atomic theory — the theory that matter consists of indivisible particles called atoms and that atoms of a given element are all identical and can neither be created nor destroyed. Compounds are formed by combination of atoms in simple ratios to give compound atoms (molecules). The theory was the basis of modern chemistry
- de broglie wave length — the postulate of wave mechanics that a particle of mass m moving at a velocity v will have the properties of a wave of wavelength h / mv (de Broglie wavelength) where h is Planck's constant.
- delayed-action shutter — a camera shutter that opens after an interval set by the photographer
- diachronic linguistics — historical linguistics.
- diethylbarbituric acid — barbital
- directed acyclic graph — (DAG) A directed graph containing no cycles. This means that if there is a route from node A to node B then there is no way back.
- directional microphone — a microphone that has a greater sensitivity to sounds coming from a particular area in front of it: used to eliminate unwanted sounds.
- disposable soma theory — the theory that ageing is caused by the body having increasingly fewer resources to allocate towards repairing wear and damage to tissues
- drumhead court-martial — a court-martial held, usually on a battlefield, for the summary trial of charges of offenses committed during military operations.
- electrophysiologically — In an electrophysiological way.
- electrothermal printer — a printer that produces characters by burning the image on specially coated paper
- equal rights amendment — a proposed amendment to the US Constitution enshrining equality between the sexes
- evolutionary algorithm — (EA) An algorithm which incorporates aspects of natural selection or survival of the fittest. An evolutionary algorithm maintains a population of structures (usually randomly generated initially), that evolves according to rules of selection, recombination, mutation and survival, referred to as genetic operators. A shared "environment" determines the fitness or performance of each individual in the population. The fittest individuals are more likely to be selected for reproduction (retention or duplication), while recombination and mutation modify those individuals, yielding potentially superior ones. EAs are one kind of evolutionary computation and differ from genetic algorithms. A GA generates each individual from some encoded form known as a "chromosome" and it is these which are combined or mutated to breed new individuals. EAs are useful for optimisation when other techniques such as gradient descent or direct, analytical discovery are not possible. Combinatoric and real-valued function optimisation in which the optimisation surface or fitness landscape is "rugged", possessing many locally optimal solutions, are well suited for evolutionary algorithms.
- examining the entrails — The process of grovelling through a core dump or hex image in an attempt to discover the bug that brought a program or system down. The reference is to divination from the entrails of a sacrified animal. Compare runes, incantation, black art, desk check.
- fall prey to something — To fall prey to something bad means to be taken over or affected by it.
- fifth earl of rosebery — Archibald Philip Primrose [prim-rohz] /ˈprɪmˌroʊz/ (Show IPA), 5th Earl of, 1847–1929, British statesman and author: prime minister 1894–95.
- floating exchange rate — a system in which the value of a currency fluctuates against other currencies in accordance with market forces
- forth modification lab — (event) (FORML) A Forth conference held every November on the West coast of the USA ().
- full english breakfast — morning meal of eggs, bacon, etc.
- gallamine triethiodide — a neuromuscular blocking drug, C 30 H 60 I 3 N 3 O 3 , similar to curare, used as a skeletal muscle relaxant in conjunction with surgical anesthesia.
- give something a whirl — to attempt or give a trial to something
- graphical display unit — an output device incorporating a cathode ray tube on which both line drawings and text can be displayed. It is usually used in conjunction with a light pen to input or reposition data
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