14-letter words containing n, e, p, h, r
- phenylthiourea — 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.
- philanthropize — to treat (persons) in a philanthropic manner.
- phonochemistry — the branch of chemistry concerned with the chemical effects of sound and ultrasonic waves
- phonoreception — the physiological perception of sound.
- phosphoprotein — a protein, as casein or ovalbumin, in which one or more hydroxyl groups of serine, threonine, or tyrosine are hydroxylated.
- phosphorescent — exhibiting phosphorescence.
- photoengraving — a photographic process of preparing printing plates for letterpress printing.
- photoreception — the physiological perception of light.
- photorecording — the act of making photographic records, especially of documents.
- photoreduction — a reduction reaction induced by light.
- pigeon-hearted — timid; meek.
- pinhole camera — a simple camera in which an aperture provided by a pinhole in an opaque diaphragm is used in place of a lens.
- pinking shears — shears that have notched blades, for cutting and simultaneously pinking fabric or for finishing garments with a notched, nonfraying edge.
- pitch cylinder — (in a gear or rack) an imaginary surface forming a plane (pitch plane) a cylinder (pitch cylinder) or a cone or frustrum (pitch cone) that moves tangentially to a similar surface in a meshing gear so that both surfaces travel at the same speed.
- pithecanthrope — (sometimes initial capital letter) a member of the former genus Pithecanthropus.
- plenum-chamber — a system of mechanical ventilation in which fresh air is forced into the spaces to be ventilated from a chamber (plenum chamber) at a pressure slightly higher than atmospheric pressure, so as to expel foul air.
- plesiochronous — (communications) Nearly synchronised, a term describing a communication system where transmitted signals have the same nominal digital rate but are synchronised on different clocks. According to ITU-T standards, corresponding signals are plesiochronous if their significant instants occur at nominally the same rate, with any variation in rate being constrained within specified limits.
- pneumothoraces — the presence of air or gas in the pleural cavity.
- polar zenithal — a type of map projection in which part of the earth's surface is projected onto a plane tangential to it at one of the poles
- polygon pusher — (Or "rectangle slinger"). A chip designer who spends most of his or her time at the physical layout level (which requires drawing *lots* of multi-coloured polygons).
- porcupine fish — any of several fishes of the family Diodontidae, especially Diodon hystrix, of tropical seas, capable of inflating the body with water or air until it resembles a globe, with erection of the long spines covering the skin.
- porphyrogenite — a prince born after his father has succeeded to the throne
- preanaesthetic — a drug administered prior to an anaesthetic
- pride of china — the chinaberry, Melia azedarach.
- printing house — a company engaged in the business of producing printed matter
- pro-censorship — the act or practice of censoring.
- pro-euthanasia — Also called mercy killing. the act of putting to death painlessly or allowing to die, as by withholding extreme medical measures, a person or animal suffering from an incurable, especially a painful, disease or condition.
- progenitorship — parenthood; the position of being a progenitor
- project athena — (project) A distributed system project for support of educational and research computing at MIT. Much of the software developed is now in wider use, especially the X Window System.
- prominent moth — any moth of the family Notodontidae characterized by tufts of scales on the back edge of the forewing that stand up prominently at rest and give the group its name. It includes the puss moth and buff-tip as well as those with prominent in the name
- prosencephalon — the forebrain.
- pruning shears — small, sturdy shears used for pruning shrubbery.
- psychic energy — according to Freud, the force that lies behind all mental processes, having its basic source as the id.
- psychoneurosis — neurosis (def 1).
- punch operator — a person who enters data into cards by means of punching holes
- purse snatcher — wallet thief
- put the arm on — the upper limb of the human body, especially the part extending from the shoulder to the wrist.
- pyelonephritic — of or relating to an inflammation of the pelvis and renal parenchyma
- pyelonephritis — inflammation of the kidney and its pelvis, caused by a bacterial infection.
- pyelonephrosis — any disease of the kidney and its pelvis.
- pyriphlegethon — Phlegethon (def 1).
- pyrotechnician — a specialist in the origin of fires, their nature and control, etc.
- pythagoreanism — the doctrines of Pythagoras and his followers, especially the belief that the universe is the manifestation of various combinations of mathematical ratios.
- radiotelephone — a telephone in which sound or speech is transmitted by means of radio waves instead of through wires or cables.
- radiotelephony — the constructing or operating of radiotelephones.
- rhine province — a former province in W Germany, mostly W of the Rhine: now divided between Rhineland-Palatinate and North Rhine–Westphalia.
- rhinencephalon — the part of the cerebrum containing the olfactory structures.
- rhombenporphyr — an intermediate igneous rock embedded with rhombus-shaped crystals
- riemann sphere — a sphere used for a stereographic projection.
- roentgenograph — roentgenogram.