20-letter words containing p, e, r, i, h, a
- a drop in the bucket — an amount very small in relation to what is needed or desired
- a safe pair of hands — If you say that someone is or has a safe pair of hands, you mean that they are reliable and will not make any serious mistakes.
- adrenocorticotrophic — stimulating the adrenal cortex
- adrenocorticotrophin — (hormone) adrenocorticotropic hormone.
- anticrepuscular arch — antitwilight arch.
- apollonius of rhodes — 3rd century bc, Greek epic poet and head of the Library of Alexandria. His principal work is the four-volume Argonautica
- apothecaries' weight — a system of weights, formerly used in pharmacy, based on the Troy ounce, which contains 480 grains. 1 grain is equal to 0.065 gram
- appalachian dulcimer — dulcimer (def 2).
- arches national park — a national park in E Utah: natural arch formations. 114 sq. mi. (295 sq. km).
- archiepiscopal cross — patriarchal cross.
- atmospheric pressure — Atmospheric pressure is the pressure of the atmosphere on the Earth's surface.
- attachment parenting — a style of child rearing aimed at developing a strong emotional bond between the child and primary caregiver. See also attachment (def 3a).
- bacteriochlorophylls — Plural form of bacteriochlorophyll.
- baptism for the dead — the baptism of a living person in the place of and for the sake of one who has died unbaptized: now practiced chiefly by Mormons.
- belgian shepherd dog — a medium-sized well-proportioned dog of a breed that resembles an Alsatian in appearance and is often used as a sheepdog or a guard dog
- bismarck archipelago — a group of over 200 islands in the SW Pacific, northeast of New Guinea: part of Papua New Guinea. Main islands: New Britain, New Ireland, Lavongai, and the Admiralty Islands. Chief town: Rabaul, on New Britain. Pop: 566 610 (2000). Area: 49 658 sq km (19 173 sq miles)
- brachiocephalic vein — either of two major veins, formed by the merger of the subclavian and internal jugular veins, that drain blood from the head and arms.
- calcium hypochlorite — a white, crystalline compound, Ca(OCl) 2 , used as a disinfectant and bleaching agent.
- casing head pressure — The casing head pressure is the pressure on the casing, which is measured at the wellhead.
- catastrophic failure — Catastrophic failure is sudden and complete failure which cannot be put right.
- catastrophic illness — A catastrophic illness is a major health event that takes place during a particular period of time, such as a heart attack, stroke, or cancer.
- cavendish experiment — the experiment, conducted by Henry Cavendish, that determined the constant of gravitation by using a torsion balance and measuring the torsion produced by two masses placed at given distances from the masses on the balance.
- chapter of accidents — a series of misfortunes
- character repertoire — (character) The set of all characters onto which a coded character set maps integers (code positions). For example, consider these two simple coded character sets: Coded Character Set One: integer 0 -> the character "A" integer 1 -> the character "B" Coded Character Set Two: integer 0 -> the character "B" integer 1 -> the character "A" Both of these coded character sets map to the characters "A" and "B", so they have the same character repertoire. But since the mapping is different (and obviously incompatible), these are different coded character sets.
- chemical fingerprint — a distinctive characteristic or pattern indicating the presence of a certain molecule, used to identify a chemical.
- chemolithoautotrophs — Plural form of chemolithoautotroph.
- chemotherapeutically — By means of chemotherapy.
- child support agency — the British government agency concerned with the welfare of children
- christopher strachey — (person) Professor of Computation at Oxford, England, born 1916, died May 1975. He invented the term "currying". See also: General Purpose Macro-generator.
- composite photograph — a photograph formed by superimposing two or more separate photographs
- computability theory — (mathematics) The area of theoretical computer science concerning what problems can be solved by any computer. A function is computable if an algorithm can be implemented which will give the correct output for any valid input. Since computer programs are countable but real numbers are not, it follows that there must exist real numbers that cannot be calculated by any program. Unfortunately, by definition, there isn't an easy way of describing any of them! In fact, there are many tasks (not just calculating real numbers) that computers cannot perform. The most well-known is the halting problem, the busy beaver problem is less famous but just as fascinating.
- contact metamorphism — localized metamorphism resulting from the heat of an igneous intrusion.
- craft apprenticeship — a period of training for a skilled trade in industry, such as for a plumber or electrician
- craniosacral therapy — a form of therapy for various disorders in which the therapist manipulates the bones of the skull
- crime and punishment — a novel (1866) by Feodor Dostoevsky.
- demographic timebomb — a predicted shortage of school-leavers and consequently of available workers, caused by an earlier drop in the birth rate, resulting in an older workforce
- diabetic retinopathy — a disorder of the blood vessels of the retina occurring as a complication of poorly controlled diabetes mellitus and often leading to blindness.
- disciplinary hearing — a hearing at which the conduct of a member of an organization, profession etc is examined and a punishment may be handed down
- dispersion hardening — the strengthening of an alloy as a result of the presence of fine particles in the lattice
- disruptive discharge — the sudden, large increase in current through an insulating medium resulting from complete failure of the medium under electrostatic stress.
- ecumenical patriarch — the patriarch of Constantinople, regarded as the highest dignitary of the Greek Orthodox Church.
- electrocardiographic — Of or pertaining to an electrocardiogram (ECG) or electrocardiograph.
- electrophysiological — Of or pertaining to electrophysiology.
- elephant in the room — an obvious truth deliberately ignored by all parties in a situation
- epidural anaesthesia — numbing injection in the spine
- feather in one's cap — one of the horny structures forming the principal covering of birds, consisting typically of a hard, tubular portion attached to the body and tapering into a thinner, stemlike portion bearing a series of slender, barbed processes that interlock to form a flat structure on each side.
- forty-ninth parallel — an informal name for the Canadian border with the USA, which is in part delineated by the parallel line of latitude at 49°N
- freefall parachuting — a variety of parachuting in which the jumper manoeuvres in free fall before opening the parachute
- freight pass-through — a special allowance or discounted price given a bookseller or bookstore by a publishing house for paying the freight charge on a shipment of books ordered: so called because the shipping charge is passed on to the consumer by an increase in the suggested retail price for each book. Abbreviation: FPT.
- generative phonology — a theory of phonology that uses a set of rules to derive phonetic representations from abstract underlying forms.
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