19-letter words containing a, p, r, i, s, e
- optical double star — two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star) or those that are relatively close together and comprise a single physical system (physical double star)
- orthopaedic surgeon — a surgeon specializing in the branch of surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
- orthopaedic surgery — surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
- paleoanthropologist — the study of the origins and predecessors of the present human species, using fossils and other remains.
- palisade parenchyma — the upper layer of ground tissue in a leaf, consisting of elongated cells beneath and perpendicular to the upper epidermis and constituting the primary area of photosynthesis.
- pancreatic fibrosis — cystic fibrosis.
- parachute spinnaker — a very large spinnaker used on a racing yacht.
- parainfluenza virus — any of a group of viruses that cause respiratory infections with influenza-like symptoms, esp in children
- 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 processing — extending in the same direction, equidistant at all points, and never converging or diverging: parallel rows of trees.
- paraphase amplifier — an amplifier that produces a push-pull output from a single input.
- parasympathomimetic — having an effect similar to that produced when the parasympathetic nervous system is stimulated
- parkinson's disease — a common neurologic disease believed to be caused by deterioration of the brain cells that produce dopamine, occurring primarily after the age of 60, characterized by tremors, especially of the fingers and hands, muscle rigidity, shuffling gait, slow speech, and a masklike facial expression.
- 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
- parting of the ways — When there is a parting of the ways, two or more people or groups of people stop working together or travelling together.
- passenger enquiries — enquiries from passengers to a transport company such as a railway or airline
- pastoral counseling — the use of psychotherapeutic techniques by trained members of the clergy to assist parishioners who seek help for personal or emotional problems.
- pedestrian crossing — place to cross road
- pedestrian precinct — A pedestrian precinct is a street or part of a town where vehicles are not allowed.
- peninsular malaysia — part of Malaysia, on the Malay Peninsula: consists of the former Federated Malay States, the former Unfederated Malay States, and the former Straits Settlements. Capital: Kuala Lumpur. Pop: 17 144 322 (2000). Area: 131 587 sq km (50 806 sq miles)
- performance figures — the statistics that indicate how well or badly a company or organization has performed
- 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
- peroxysulfuric acid — persulfuric acid (def 1).
- persian gulf states — group of Arab sheikdoms along the Persian Gulf: Kuwait, Bahrain, Qatar, & United Arab Emirates
- personal belongings — possessions; things that belong to someone
- personal stationery — headed notepaper
- photodisintegration — the disintegration of a nucleus, induced by its absorption of a photon.
- photoreconnaissance — reconnaissance using aerial photography.
- physical addressing — (networking) The low level addressing scheme used on Ethernet. The 48-bit destination Ethernet address in a packet is compared with the receiving node's Ethernet address. Compare IP address.
- physical impairment — A physical impairment is a condition in which a part of a person's body is damaged or is not working properly.
- physically impaired — with reduced or weakened physical capacity
- piece de resistance — the principal dish of a meal.
- pillars of hercules — the two promontories at the E end of the Strait of Gibraltar: the Rock of Gibraltar on the European side and the Jebel Musa on the African side; according to legend, formed by Hercules
- pirates of penzance — an operetta (1879) by Sir William S. Gilbert and Sir Arthur Sullivan.
- pistachio ice cream — ice cream flavoured with pistachios
- planning permission — In Britain, planning permission is official permission that you must get from the local authority before building something new or adding something to an existing building.
- 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.
- pneumogastric nerve — the vagus nerve.
- 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
- 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.
- portuguese-speaking — being a speaker of Portuguese; having Portuguese as the national language
- post-and-rail fence — a fence constructed of upright wooden posts with horizontal timber slotted through it
- posterior pituitary — a small, somewhat cherry-shaped double structure attached by a stalk to the base of the brain and constituting the master endocrine gland affecting all hormonal functions in the body, consisting of an anterior region ((anterior pituitary) or (adenohypophysis)) that develops embryonically from the roof of the mouth and that secretes growth hormone, LH, FSH, ACTH, TSH, and MSH, a posterior region ((posterior pituitary) or (neurohypophysis)) that develops from the back of the forebrain and that secretes the hormones vasopressin and oxytocin, and an intermediate part (pars intermedia) derived from the anterior region but joined to the posterior region, that secretes the hormone MSH in lower vertebrates.
- potassium carbonate — a white, granular, water-soluble powder, K 2 CO 3 , used chiefly in the manufacture of soap, glass, and potassium salts.
- potassium hydroxide — a white, deliquescent, water-soluble solid, KOH, usually in the form of lumps, sticks, or pellets, that upon solution in water generates heat: used chiefly in the manufacture of soap, as a laboratory reagent, and as a caustic.