12-letter words containing h, e, p
- pi character — any special character, such as an accent or mathematical symbol, which is not normally obtained in a standard type fount
- picture sash — a large window sash, as for a picture window.
- picture show — motion picture.
- picturephone — a type of telephone where users can see each other as they talk, through the transmission of video images
- pidyon haben — the rite of relieving the first male child born to parents not descended from Aaron or Levi of certain religious obligations by redeeming him from a member of the priestly class, celebrated 30 days after the child's birth.
- pig launcher — A pig launcher is a device which starts a pig moving without interrupting flow.
- pigeon-chest — chicken breast.
- pinch effect — the tendency of an electric conductor or stream of charged particles to constrict, caused by the action of a magnetic field that is produced by a flow of electricity.
- pinch hitter — Baseball. a substitute who bats for a teammate, often at a critical moment of the game.
- pinch roller — a flexible device that presses magnetic tape against the capstan in a tape recorder.
- pinch runner — a player sent into a game to replace a base runner.
- pinch-hitter — a batter who acts as a substitute for the scheduled batter
- pirate perch — a purplish North American freshwater fish, Aphredoderus sayanus, the adult of which has the vent located in back of the lower jaw.
- pitch a tale — to tell a story, usually of a fantastic nature
- pitch accent — (in languages such as Ancient Greek or modern Swedish) an accent in which emphatic syllables are pronounced on a higher musical pitch relative to other syllables
- pitch chisel — a broad-edged chisel for cutting plane surfaces on stones.
- pitch circle — an imaginary circle within the profiles of the teeth of a gear, such that it rotates against a similar circle rotating at the same rate on a meshing gear.
- pitched-roof — a roof sloping downward in two parts at an angle from a central ridge, so as to leave a gable at each end.
- place-holder — Mathematics, Logic. a symbol in an expression that may be replaced by the name of any element of the set.
- plagiohedral — (of a crystal) having faces arranged obliquely in a helix.
- plainclothes — Plainclothes police officers wear ordinary clothes instead of a police uniform.
- planet earth — the world
- planet wheel — any of the gears in an epicyclic train surrounding and engaging with the sun gear.
- plasmasphere — a region of cool plasma surrounding the earth, extending 8000–25,000 miles (13,000–40,000 km) into space, and bounded by the plasmapause.
- plattdeutsch — the Low German vernacular dialects spoken in northern Germany.
- play chicken — to engage in a test of courage in which, typically, two vehicles are driven directly toward one another in order to see which driver will swerve away first
- play clothes — clothes that are suitable for playing in
- play therapy — a form of psychotherapy used chiefly with children, in which patients act out situations in play that are expressive of their emotional problems, conflicts, etc.
- pleased with — satisfied or content with
- pleiochasium — a flowering system in which several buds come out at the same time
- pleomorphism — existence of an organism in two or more distinct forms during the life cycle; polymorphism.
- pleomorphous — characterized by pleomorphism
- plough horse — a horse used for pulling a plough
- pneumography — the process of recording the movements of the thorax in respiration.
- pneumothorax — the presence of air or gas in the pleural cavity.
- poikilotherm — an organism with poikilothermic qualities
- point charge — an electric charge considered to exist at a single point, and thus having neither area nor volume.
- pointed arch — an arch having a pointed apex.
- police chief — chief of police: head of a US police force
- policyholder — the individual or firm in whose name an insurance policy is written; an insured.
- polish wheat — a wheat, Triticum polonicum, grown chiefly in S Europe, N Africa, and Turkestan.
- poll watcher — a representative of a political party or of an organization running a candidate who is assigned to the polls on an election day to watch for violations of the laws that regulate voting, campaigning, etc.
- pollen brush — the mass of stiff hairs on the legs or abdomen of an insect, for collecting pollen.
- polychaetous — of or relating to the genus Polychaeta
- polycythemia — an abnormal increase in the number and concentration of circulating red blood corpuscles
- polycythemic — relating to polycythemia
- polyethylene — a plastic polymer of ethylene used chiefly for containers, electrical insulation, and packaging.
- polyhedrosis — an often fatal disease of certain insect larvae or decapod crustaceans, caused by viruses containing DNA.
- polyphenolic — relating to a polyphenol
- polyphyletic — developed from more than one ancestral type, as a group of animals.