20-letter words containing p

heteropolysaccharide — (carbohydrate) any polysaccharide formed from two or more different kinds of monosaccharide.
hieroglyphic hittite — an extinct language of the Anatolian branch of Indo-European, written in a pictographic script in Syria c1200–c600 b.c.: the same language as written in cuneiform in Anatolia is known as Luwian.
high-energy particle — Physics
high-explosive shell — a shell containing high explosive
himalayan guinea pig — a variety of short-haired guinea pig with markings on its nose, ears, and feet
hipparchus satellite — an astronometric satellite launched in 1989 by the European Space Agency that measured the position, proper motion, and brightness of 118 218 stars down to 12th magnitude and the magnitude and colour of a million stars down to 10th magnitude
hire-purchase system — a system of payment for a commodity in regular installments while using it.
hit the panic button — an alarm button for use in an emergency, as to summon help.
holy water sprinkler — morning star (def 2).
homo sapiens sapiens — the subspecies of the genus Homo in which modern humans are classified.
horizontally opposed — A horizontally opposed engine has the cylinders set horizontally at either side of the crankshaft.
hospitality industry — the hotel and accommodation industry
household appliances — devices or machines, usually electrical, that are in your home and which you use to do jobs such as cleaning or cooking
houses of parliament — In Britain, the Houses of Parliament are the British parliament, which consists of two parts, the House of Commons and the House of Lords. The buildings where the British parliament does its work are also called the Houses of Parliament.
how are you keeping? — how are you?
hudson's bay company — a company chartered in England in 1670 to carry on fur trading with the Indians in North America.
human genome project — a federally funded U.S. scientific project to identify both the genes and the entire sequence of DNA base pairs that make up the human genome.
human papillomavirus — any of a group of papillomaviruses causing cutaneous warts and lesions of the oral, anal, and genital mucous membranes in human beings
human parvovirus b19 — Pathology. a mild infection, most often seen in children or young adults, caused by a small virus ((the human parvovirus B19)) and marked by a blotchy rash on the cheeks, arms, and legs.
hydraulic suspension — a system of motor-vehicle suspension using hydraulic members, often with hydraulic compensation between front and rear systems (hydroelastic suspension)
hydrostatic pressure — Hydrostatic pressure is the pressure exerted by a liquid that depends on how deep it is.
hyperadrenocorticism — Cushing's syndrome.
hyperbolic cotangent — a hyperbolic function that is the ratio of cosh to sinh, being the reciprocal of tanh; coth
hypercholesterolemia — the presence of an excessive amount of cholesterol in the blood.
hypercholesterolemic — (pathology) Of, pertaining to, or having hypercholesterolemia.
hyperhomocysteinemia — (medicine) The presence of an excessive amount of homocysteine in the blood.
hyperlipoproteinemia — Pathology. any of various disorders of lipoprotein metabolism, usually characterized by abnormally high levels of cholesterol and certain lipoproteins in the blood.
hypodermic injection — the injection of a medicine or drug under the skin
hypophosphorous acid — a colorless or yellowish, water-soluble, liquid, monobasic acid, H 3 PO 2 , having a sour odor, and used as a reducing agent.
ideal of pure reason — God, seen as an idea of pure reason unifying the personal soul with the cosmos.
ignotum per ignotius — an explanation that is obscurer than the thing to be explained
imperfect contrition — sincere penitence or remorse.
implicit parallelism — (parallel) A feature of a programming language for a parallel processing system which decides automatically which parts to run in parallel. The best way of providing implicit parallelism is still (1995) an active research topic. The problem is to generate the right number of parallel tasks of the right size (or "granularity"). Too many tasks and the system gets bogged down in house-keeping, or memory for waiting tasks runs out, too few tasks and processors are left idle. The best performance is usually achieved with explicit parallelism where the programmer can annotate his program to indicate which parts should be executed as independent parallel tasks.
imported currantworm — the larva of any of several insects, as a sawfly, Nematus ribesii (imported currantworm) which infests and feeds on the leaves and fruit of currants.
in (or out of) play — in (or not in) the condition for continuing play
in any shape or form — If you say, for example, that you will not accept something in any shape or form, or in any way, shape or form, you are emphasizing that you will not accept it in any circumstances.
in the lap of luxury — If you say that someone lives in the lap of luxury, you mean that they live in conditions of great comfort and wealth.
in the public domain — able to be discussed and examined freely by the general public
income tax inspector — a person whose job is to assess individuals' income tax liability
incomplete dominance — the appearance in a heterozygote of a trait that is intermediate between either of the trait's homozygous phenotypes.
incomprehensibleness — The state of being incomprehensible.
incorporated company — a legally constituted company
independence of path — the property of a function for which the line integral has the same value along all curves between two specified points.
independent variable — Mathematics. a variable in a functional relation whose value determines the value or values of other variables, as x in the relation y = 3 x 2 . Compare dependent variable (def 1).
independently-minded — self-reliant and seeking autonomy
indicated horsepower — the horsepower of a reciprocating engine as shown by an indicator record. Abbreviation: ihp, IHP.
industrial espionage — the stealing of technological or commercial research data, blueprints, plans, etc., as by a person in the hire of a competing company.
inertial upper stage — a U.S. two-stage, solid-propellant rocket used to boost a relatively heavy spacecraft from a low earth orbit into a planetary trajectory or an elliptical transfer orbit. Abbreviation: IUS.
infectious hepatitis — hepatitis A.
infrared photography — photography using film with an emulsion that is sensitive to infrared light, enabling it to be used in misty weather, in darkened interiors, or at night. It has applications in aerial surveys, the detection of forgeries, etc

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