16-letter words containing p, c, e
- peace initiative — the first or opening move in negotiating an end to conflict or negotiating peace
- peach tree borer — the larva of any of several clearwing moths, as Sanninoidea exitiosa, that bore into the wood of the peach and other drupaceous trees.
- peano arithmetic — (mathematics) Giuseppe Peano's system for representing natural numbers inductively using only two symbols, "0" (zero) and "S" (successor). This system could be expressed as a recursive data type with the following Haskell definition: data Peano = Zero | Succ Peano The number three, usually written "SSS0", would be Succ (Succ (Succ Zero)). Addition of Peano numbers can be expressed as a simple syntactic transformation: plus Zero n = n plus (Succ m) n = Succ (plus m n) (1995-03-28)
- pectoralis major — the larger of the two large chest muscles that assist in movements of the shoulder and upper arm
- pectoralis minor — the smaller of the two large chest muscles that assist in movements of the shoulder and upper arm
- pelagic division — the biogeographic realm or zone that comprises the open seas and oceans, including water of all depths.
- pelican crossing — place to cross road
- pencil and paper — An archaic information storage and transmission device that works by depositing smears of graphite on bleached wood pulp. More recent developments in paper-based technology include improved "write-once" update devices which use tiny rolling heads similar to mouse balls to deposit coloured pigment. All these devices require an operator skilled at so-called "handwriting" technique. These technologies are ubiquitous outside hackerdom, but nearly forgotten inside it. Most hackers had terrible handwriting to begin with, and years of keyboarding tend to have encouraged it to degrade further. Perhaps for this reason, hackers deprecate pencil-and-paper technology and often resist using it in any but the most trivial contexts.
- pencil sharpener — tool for sharpening pencils to a point
- pentatonic scale — a scale having five tones to an octave, as one having intervals that correspond to the five black keys of a piano octave.
- people's charter — the principles or movement of a party of political reformers, chiefly workingmen, in England from 1838 to 1848: so called from the document (People's Charter or National Charter) that contained a statement of their principles and demands.
- people's commune — a usually rural, Communist Chinese social and administrative unit of from 2000 to 4000 families combined for collective farming, fishing, mining, or industrial projects.
- percentage point — difference: one per cent
- perchloromethane — carbon tetrachloride.
- percussion drill — a drill that is operated by percussion
- peregrine falcon — a globally distributed falcon, Falco peregrinus, much used in falconry because of its swift flight: several subspecies are endangered.
- perez de cuellar — Javier [hah-vyer] /hɑˈvyɛr/ (Show IPA), born 1920, Peruvian diplomat: secretary-general of the United Nations 1982–91; prime minister of Peru 2000–2001.
- perfecting press — a rotary press for printing both sides of a sheet or web in one operation.
- perforated ulcer — an ulcer that bursts through the stomach wall and leaks food and gastric juices into the abdominal cavity
- performance bond — contract bond.
- performance test — a test requiring little or no use of language, the test materials being designed to elicit manual or behavioral responses rather than verbal ones.
- periodic decimal — repeating decimal.
- periodic tenancy — the letting of a dwelling for a repeated short term, as by the week, month, or quarter, with no end date
- permaculturalist — a system of cultivation intended to maintain permanent agriculture or horticulture by relying on renewable resources and a self-sustaining ecosystem.
- permanganic acid — an acid, HMnO 4 , known only in solution.
- perpendicularity — vertical; straight up and down; upright.
- person of colour — a person who is not White
- personal effects — belongings
- personality cult — deliberately cultivated adulation of a person, esp a political leader
- personnel agency — an agency for placing employable persons in jobs; employment agency.
- persulfuric acid — Also called Caro's acid, permonosulfuric acid, peroxymonosulfuric acid, peroxysulfuric acid. a white, crystalline solid, H 2 SO 5 , used as an oxidizing agent for certain organic compounds.
- peter pan collar — a close-fitting flat or rolled collar with rounded ends that meet in front of a high, round neckline.
- phagocytic index — the average number of bacteria ingested per phagocyte in an incubated mixture of bacteria, phagocytes, and blood serum: used in determining the opsonic index.
- pharmacogenetics — the branch of pharmacology that examines the relation of genetic factors to variations in response to drugs.
- pharmacogenomics — the study of human genetic variability in relation to drug action and its application to medical treatment
- pharmacokinetics — the branch of pharmacology that studies the fate of pharmacological substances in the body, as their absorption, distribution, metabolism, and elimination.
- phase difference — the difference between two sinusoidally varying quantities that have the same frequency, measured either as an angle or a time
- phase microscope — a microscope that utilizes the phase differences of light rays transmitted by different portions of an object to create an image in which the details of the object are distinct despite their near-uniformity of refractive index.
- phenomenological — the study of phenomena.
- pheochromocytoma — a tumor of the sympathetic nervous system or adrenal medulla, that produces excess norepinephrine and epinephrine and causes hypertension, headaches, nausea, etc.
- photoelectricity — electricity induced by electromagnetic radiation, as in certain processes, as the photoelectric and photovoltaic effects, photoconductivity, and photoionization.
- photoelectrotype — an electrotype made by photographic means.
- photoluminescent — luminescence induced by the absorption of infrared radiation, visible light, or ultraviolet radiation.
- photoperiodicity — the response, as affecting growth or reproduction, of an organism to the length of exposure to light in a 24-hour period.
- phrase structure — the hierarchical arrangement of the constituent words and phrases of a sentence.
- phylogenetically — the development or evolution of a particular group of organisms.
- physical address — (memory management) The address presented to a computer's main memory in a virtual memory system, in contrast to the virtual address which is the address generated by the CPU. A memory management unit translates virtual addresses into physical addresses.
- physical fitness — good physical condition
- physical science — any of the natural sciences dealing with inanimate matter or with energy, as physics, chemistry, and astronomy.
- physical therapy — the treatment or management of physical disability, malfunction, or pain by exercise, massage, hydrotherapy, etc., without the use of medicines, surgery, or radiation.