19-letter words containing l, a, e, r, t
- over-centralization — the act or fact of centralizing; fact of being centralized.
- over-sentimentality — the quality or state of being sentimental or excessively sentimental.
- oxyacetylene burner — a blowpipe for cutting or welding metals at high temperatures
- paleoanthropologist — the study of the origins and predecessors of the present human species, using fossils and other remains.
- palomar observatory — an astronomical observatory situated on Palomar Mountain in S California, having a 200-inch (508-cm) reflecting telescope and a 48-inch (122-cm) Schmidt telescope.
- parallactic ellipse — the apparent ellipse, as seen against the background of more distant stars, described annually by a nearby star because of the earth's orbital motion around the sun. Compare parallax (def 2).
- parallel projection — a projection from one plane to a second plane in which the lines joining points on the first plane and corresponding images are parallel.
- parliament building — structure housing legislative offices
- parliamentary agent — (in Britain) a person who is employed to manage the parliamentary business of a private group
- parthenogenetically — development of an egg without fertilization.
- particle dispersoid — A particle dispersoid is a suspension of solid particles in a gas.
- particle kinematics — Particle kinematics is the study of the movement of particles, without considering the forces that cause this movement.
- particle separation — a rule that moves the particle of a phrasal verb, thus deriving a sentence like He looked the answer up from a structure that also underlies He looked up the answer
- particle technology — Particle technology is knowledge and study which relates to particles, and is used in industry.
- particular negative — a proposition of the form “Some S is not P.” Symbol: O.
- pastoral counseling — the use of psychotherapeutic techniques by trained members of the clergy to assist parishioners who seek help for personal or emotional problems.
- patrol torpedo boat — PT boat.
- paumotu archipelago — Tuamotu Archipelago.
- perfoliate bellwort — a slender plant, Uvularia perfoliata, of the lily family, of eastern North America, having pale yellow, bell-shaped flowers.
- peridental membrane — periodontal membrane.
- periodontal disease — any of various mixed bacterial infections that affect the soft tissues and bones supporting the teeth.
- peritoneal dialysis — a form of dialysis in which the peritoneum is used as an autogenous semipermeable membrane
- perpetual adoration — uninterrupted adoration of the Blessed Sacrament.
- perpetual debenture — a bond or debenture that can either never be redeemed or cannot be redeemed on demand
- perpetual inventory — a form of stock control in which running records are kept of all acquisitions and disposals
- persian gulf states — group of Arab sheikdoms along the Persian Gulf: Kuwait, Bahrain, Qatar, & United Arab Emirates
- personal stationery — headed notepaper
- personal watercraft — a jet-propelled boat ridden like a motorcycle.
- phenylthiocarbamide — a crystalline, slightly water-soluble solid, C 6 H 5 NHCSNH 2 , that is either tasteless or bitter, depending upon the heredity of the taster, and is used in medical genetics and as a diagnostic.
- photopolymerization — polymerization induced by light.
- physical impairment — A physical impairment is a condition in which a part of a person's body is damaged or is not working properly.
- pileated woodpecker — a large, black-and-white American woodpecker, Dryocopus pileatus, having a prominent red crest.
- plastic deformation — In plastic deformation a material changes shape when a stress is applied to it and does not go back to its original state when the stress is removed.
- play to the gallery — a raised area, often having a stepped or sloping floor, in a theater, church, or other public building to accommodate spectators, exhibits, etc.
- pointe-aux-trembles — a city in S Quebec, in E Canada, N of Montreal, on the St. Lawrence.
- police headquarters — building where police are stationed
- political geography — the branch of human geography that deals with the relationship between political processes and spatial structures (regions, territories, etc)
- politically correct — marked by or adhering to a typically progressive orthodoxy on issues involving especially ethnicity, gender, sexual orientation, or ecology: The actor’s comment about unattractive women was not politically correct. The CEO feels that people who care about being politically correct are overly sensitive. Abbreviations: PC, P.C.
- popular sovereignty — the doctrine that sovereign power is vested in the people and that those chosen to govern, as trustees of such power, must exercise it in conformity with the general will.
- population pressure — the force exerted by a growing population upon its environment, resulting in dispersal or reduction of the population.
- post-and-rail fence — a fence constructed of upright wooden posts with horizontal timber slotted through it
- prairie rattlesnake — a rattlesnake, Crotalus viridis viridis, of the prairies of western North America.
- pre-order traversal — traversal
- preferential voting — a system of voting designed to permit the voter to indicate an order of preference for the candidates on the ballot.
- preproduction trial — a trial to test a prototype of a product before the product goes into full-scale production
- presentation skills — the set of techniques and skills required successfully to present oral information to others
- prismatic telescope — a telescope having an eyepiece at the side or top equipped with a reflecting prism, used for taking sights at steep angles.
- private first class — a soldier ranking above a private and below a corporal or specialist fourth class in the U.S. Army, and above a private and below a lance corporal in the U.S. Marine Corps.
- professionalization — to give a professional character or status to; make into or establish as a profession.
- property speculator — a person who takes part in property speculation