23-letter words containing h, a, y, c, o
- at the mercy of someone — If one person or thing is at the mercy of another, the first person or thing is in a situation where they cannot prevent themselves being harmed or affected by the second.
- atmospheric electricity — static electricity produced by charged particles in the atmosphere.
- atomic energy authority — (in Britain) a government body established in 1954 to control research and development in atomic energy
- autoerotic asphyxiation — asphyxia caused by intentionally strangling oneself while masturbating in order to intensify the orgasm through reduced oxygen flow to the brain.
- battered child syndrome — the array of physical injuries exhibited by young children who have been beaten repeatedly or otherwise abused by their parents or guardians.
- cauchy integral formula — a theorem that gives an expression in terms of an integral for the value of an analytic function at any point inside a simple closed curve of finite length in a domain.
- cauchy integral theorem — the theorem that the integral of an analytic function about a closed curve of finite length in a finite, simply connected domain is zero.
- characteristic velocity — a measure of the effectiveness with which the combustion in a rocket engine produces high temperature and pressure, equal to the exhaust velocity divided by the thrust coefficient.
- cheyne-stokes breathing — alternating shallow and deep breathing, as in comatose patients
- combinatorial chemistry — the use of chemical methods to generate all possible combinations of chemicals
- community health centre — a medical centre that serves a particular area
- computerized tomography — a radiological technique that produces images of cross sections through a patient's body using low levels of radiation
- constitutional monarchy — a monarchy governed according to a constitution that limits and defines the powers of the sovereign
- consultant psychiatrist — a psychiatrist who has attained the rank of consultant
- cyclohexylsulfamic acid — cyclamic acid.
- dacryocystorhinostomies — Plural form of dacryocystorhinostomy.
- differential psychology — the branch of psychology dealing with the study of characteristic differences or variations of groups or individuals, especially through the use of analytic techniques and statistical methods.
- director of photography — the person who is responsible for all operations concerning camera work and lighting during the production of a film.
- electrophotographically — In an electrophotographic manner; by means of electrophotography.
- experimental psychology — the scientific study of the individual behaviour of man and other animals, esp of perception, learning, memory, motor skills, and thinking
- fluorochlorohydrocarbon — (organic chemistry) Any compound formally derived from a hydrocarbon by replacing some hydrogen atoms with fluorine and some with chlorine (at least one being retained).
- fully associative cache — (memory management) A type of cache in which data from any address can be stored in any cache location. The whole address must be used as the tag (the value that identifies a block of data in the cache). All tags must be compared simultaneously (associatively) with the requested address and if one matches then its associated data is accessed. This requires an associative memory to hold the tags which makes this form of cache more expensive. It does however solve the problem of contention for cache locations (cache conflict) since a block need only be flushed when the whole cache is full and then the block to flush can be selected in a more efficient way. The alternatives are direct mapped cache or set associative cache.
- heterogeneous catalysis — Heterogeneous catalysis is catalysis in which the catalyst does not take part in the reaction that it increases.
- hook-and-ladder company — a company of firefighters equipped with a hook-and-ladder truck.
- human leukocyte antigen — HLA.
- hydrochlorofluorocarbon — Any of a class of inert compounds of carbon, hydrogen, hydrocarbons, chlorine, and fluorine, used in place of chlorofluorocarbons as being somewhat less destructive to the ozone layer.
- hypergeometric equation — a differential equation of the form, (x 2 − x) d 2 y / d 2 x + [(a+b +1) x−c ] dy/dx + abx =0, where a, b, and c are arbitrary constants.
- hypothetical imperative — (esp in the moral philosophy of Kant) any conditional rule of action, concerned with means and ends rather than with duty for its own sake
- industrial psychologist — a person who studies human behaviour and cognitive processes in relation to the working environment
- intermediate technology — technology which combines sophisticated ideas with cheap and readily available materials, esp for use in developing countries
- kinetic theory of gases — a theory that the particles in a gas move freely and rapidly along straight lines but often collide, resulting in variations in their velocity and direction. Pressure is interpreted as arising from the impacts of these particles with the walls of a container.
- lady chatterley's lover — a novel (1928) by D. H. Lawrence.
- lymphoblastic leukaemia — a severe blood disorder in which abnormal leukocytes are identified as immature forms of lymphocytes
- magneto-encephalography — a record of the magnetic field of the brain. Abbreviation: MEG.
- magnetohydrodynamically — In a magnetohydrodynamic way.
- micropachycephalosaurus — A very small pachycephalosaurid, ornithischian dinosaur of the genus Micropachycephalosaurus.
- new york stock exchange — the largest stock exchange in the U.S., located in New York City. Abbreviation: NYSE, N.Y.S.E.
- object relations theory — a form of psychoanalytic theory postulating that people relate to others in order to develop themselves
- occupational psychology — the study of human behaviour at work, including ergonomics, selection procedures, and the effects of stress
- off the back of a lorry — If someone says that something has fallen off the back of a lorry, or that they got something off the back of a lorry, they mean that they bought something that they knew was stolen.
- orthostatic hypotension — Medicine/Medical. a fall in blood pressure associated with an upright position, usually occurring as a result of standing still for a long time or rising from a prolonged stay in bed and often causing faintness, dizziness, and vision disturbances.
- parametric polymorphism — Polymorphism was first identified by Christopher Strachey in 1967 and developed by Hindley and Milner. For example we could specify that the argument of the "head" function was a list without specifying a type for the elements of the list. In Haskell we would write: head :: [a] -> a meaning head has type function from "list of a" to "a" where "a" is a type variable). This is known as parametric polymorphism. Polymorphic typing allows strong type checking as well as generic functions. ML in 1976 was the first language with polymorphic typing. See also generic type variable.
- pharmaceuticals company — a company specialising in developing and marketing pharmaceuticals
- phyletic classification — classification of organisms based on their assumed evolutionary histories and relationships.
- physical memory address — physical address
- physiological phonetics — the branch of phonetics that deals with the motive processes, anatomical measurements, spirometric properties, muscle and membrane tone, and kinetic aspects of the production of speech and with related aspects of the reception of speech.
- polymethyl methacrylate — polymerized methyl methacrylate.
- process hazard analysis — Process hazard analysis is calculating what might be a hazard in a process, how likely it is to happen, and what should be done if someone or something is exposed to this hazard.
- psychomotor retardation — a generalized slowing of psychological and physical activity, frequently occurring as a symptom of severe depression.
- public-key cryptography — public-key encryption
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