17-letter words containing a, r, e, l
- parliamentary law — the body of rules, usages, and precedents that governs proceedings of legislative and deliberative assemblies.
- partially sighted — unable to see properly so that even with corrective aids normal activities are prevented or seriously hindered
- particle kinetics — Particle kinetics is the study of the movement of particles and the forces that cause this movement.
- particle velocity — the velocity of a point in a medium that is undergoing wave motion.
- parts per million — the number of units (of a substance) present in a million units of another substance
- pascal's triangle — a triangular arrangement of the binomial coefficients of the expansion (x + y) n for positive integral values of n.
- past life therapy — a form of hypnosis or meditation based on the belief that an individual's present problems are rooted in events that occurred before birth in this life
- pastoral theology — the branch of theology dealing with the responsibilities of members of the clergy to the people under their care.
- paternalistically — the system, principle, or practice of managing or governing individuals, businesses, nations, etc., in the manner of a father dealing benevolently and often intrusively with his children: The employees objected to the paternalism of the old president.
- pauline privilege — (in canon law) the privilege given to converts to dissolve a marriage with an unbaptized spouse if either obstructs the religious practices of the other.
- paymaster general — a government minister responsible for making payments by government departments
- peach bark beetle — a bark beetle, Phloeotribus liminaris, that feeds on and nests in peach and other drupaceous trees.
- peacock butterfly — a European nymphalid butterfly, Inachis io, having reddish-brown wings each marked with a purple eyespot
- peer of the realm — any of a class of peers in Great Britain and Ireland entitled by heredity to sit in the House of Lords.
- peloponnesian war — a war between Athens and Sparta, 431–404 b.c., that resulted in the transfer of hegemony in Greece from Athens to Sparta.
- pentachlorophenol — a white, crystalline, water-insoluble powder, C 6 Cl 5 OH, used chiefly in fungicides, disinfectants, and wood preservatives.
- pentylenetetrazol — a white, crystalline, bitter-tasting, water-soluble powder, C 6 H 1 0 N 4 , used as a respiratory and circulatory stimulant, especially in the treatment of barbiturate poisoning, and to induce a convulsive state in the treatment of certain mental diseases.
- periodical cicada — seventeen-year locust.
- peripheral device — peripheral
- peripheral vision — all that is visible to the eye outside the central area of focus; side vision.
- perpetual spinach — a variety of spinach that keeps producing edible leaves
- personal computer — a compact computer that uses a microprocessor and is designed for individual use, as by a person in an office or at home or school, for such applications as word processing, data management, financial analysis, or computer games. Abbreviation: PC.
- personal distance — personal space.
- personal equation — the tendency to personal bias that accounts for variation in interpretation or approach and for which allowance must be made.
- personal property — an estate or property consisting of movable articles both corporeal, as furniture or jewelry, or incorporeal, as stocks or bonds (distinguished from real property).
- personality clash — friction between two people who have different personalities or points of view
- personnel carrier — a vehicle used for transporting troops
- personnel manager — head of Human Resources department
- peterloo massacre — an incident at St Peter's Fields, Manchester, in 1819 in which a radical meeting was broken up by a cavalry charge, resulting in about 500 injuries and 11 deaths
- petrol filler cap — a small cover that goes over the hole in a vehicle into which you put petrol
- phenylformic acid — benzoic acid.
- phonological rule — an operation in generative phonology that substitutes one sound or class of sounds for another in a phonological derivation.
- physical exercise — movements and activities done to keep your body healthy or make it stronger
- pillar-and-breast — room-and-pillar.
- pillion passenger — a person who travels in a seat or place behind the rider of a motorcycle, scooter, horse, etc
- plateau's problem — the problem in the calculus of variations of finding the surface with the least area bounded by a given closed curve in space.
- platinic chloride — chloroplatinic acid.
- plug and feathers — an apparatus for splitting stone, consisting of two tapered bars (feathers) inserted into a hole drilled into the stone, between which a narrow wedge (plug) is hammered to spread them.
- pluvius insurance — insurance against rain
- pocket calculator — an electronic calculator small enough to be carried on one's person.
- point reyes lilac — a prostrate shrub, Ceanothus gloriosus, of southern California, having leathery, roundish leaves and purplish or deep-blue flowers.
- polar continental — a type of cold, dry air mass originating at high latitudes over land areas
- polar coordinates — Usually, polar coordinates. one of two coordinates used to locate a point in a plane by the length of its radius vector and the angle this vector makes with the polar axis (polar angle)
- polarizing filter — a camera lens filter used to control the plane of polarization of light entering the lens.
- police department — A police department is an official organization which is responsible for making sure that people obey the law.
- police procedural — a mystery novel, film, or television drama that deals realistically with police work.
- political liberty — the right to express oneself freely and effectually regarding the conduct, makeup, and principles of the government under which one lives.
- political refugee — a person who has fled from a homeland because of political persecution.
- polyacrylonitrile — a polymer of acrylonitrile used in the manufacture of Orlon and other synthetic textiles.
- polymorphonuclear — (of a leukocyte) having a lobulate nucleus.