15-letter words containing a, h, i, e
- photoelasticity — the phenomenon of double refraction of polarized light by a transparent substance under elastic stress, used to measure strain in elastic, transparent materials.
- photoexcitation — the creation of an increase in energy in atoms, molecules or ions caused by the absorption of a photon
- photoheliograph — an instrument for photographing the sun, consisting of a camera and a specially adapted telescope.
- photomechanical — noting or pertaining to any of various processes for printing from plates or surfaces prepared by the aid of photography.
- photorefractive — of or relating to a change in the index of refraction by spatial variations of the light intensity, as in a laser.
- phrasemongering — the act of coining memorable phrases
- phrenologically — in a manner relating to phrenology
- physical change — a usually reversible change in the physical properties of a substance, as size or shape: Freezing a liquid is a physical change.
- physical memory — (memory management) The memory hardware (normally RAM) installed in a computer. The term is only used in contrast to virtual memory.
- physicochemical — physical and chemical: the physicochemical properties of an isomer.
- physiotherapist — physical therapy.
- phytochemically — in a phytochemical manner
- phytopathogenic — of, possessing the properties of, or relating to a phytopathogen
- pick and choose — to choose or select from among a group: to pick a contestant from the audience.
- pick up the tab — If you pick up the tab, you pay a bill on behalf of a group of people or provide the money that is needed for something.
- pick-and-shovel — marked by drudgery; laborious: the pick-and-shovel work necessary to get a political campaign underway.
- pied flycatcher — a small black and white migratory bird of Europe and western Asia, Ficedula hypoleuca
- pilgrim fathers — the Pilgrims (of Plymouth Colony)
- pinball machine — the tablelike, usually coin-operated machine on which pinball is played.
- pine leaf aphid — any of various homopterous insects of the family Adelgidae, as Adelges abietis (spruce gall aphid) and Pineus pinifoliae (pine leaf aphid) that feed and form galls on conifers.
- pinochet ugarte — Augusto [ou-goos-taw] /aʊˈgus tɔ/ (Show IPA), 1915–2006, Chilean army general and political leader: president 1973–90.
- pistachio green — a light or medium shade of yellow green.
- pitch blackness — extreme darkness; lack of light
- pithecanthropus — a former genus of extinct hominids whose members have now been assigned to the proposed species Homo erectus.
- plain chocolate — dark eating chocolate
- plainclothesman — a police officer, especially a detective, who wears ordinary civilian clothes while on duty.
- plant-hire firm — a company that hires out mobile mechanical equipment for construction, road-making, etc
- platyhelminthes — a phylum of worms having bilateral symmetry and a soft, usually flattened body, comprising the flatworms.
- pleochroic halo — a dark-colored, microscopic ring around a minute radioactive particle in certain mineral crystals, used in estimating the age of the rocks containing these crystals
- polychlorinated — having multiple chlorine atoms
- pontine marshes — an area of W Italy, southeast of Rome: formerly malarial swamps, drained in 1932–34 after numerous attempts since 160 bc had failed
- posthemorrhagic — occurring after a haemorrhage
- power macintosh — Power Mac
- prairie chicken — either of two North American gallinaceous birds of western prairies, Tympanuchus cupido (greater prairie chicken) or T. pallidicinctus (lesser prairie chicken) having rufous, brown, black, and white plumage.
- pre-elizabethan — (of English culture, history, traditions, etc.) before the reign of Queen Elizabeth I; before the second half of the 16th century.
- pre-established — to establish beforehand.
- primary feather — any of the flight feathers growing from the manus of a bird's wing
- primary teacher — a teacher in a primary school
- prince charming — (sometimes lowercase) a man who embodies a woman's romantic ideal.
- private hearing — a formal or official trial that is not open to the public
- probationership — the position of a probationer
- process heating — Process heating is heating, usually from steam, which is used to increase the temperature in a process vessel.
- propionaldehyde — a colorless, water-soluble liquid, C 3 H 6 O, having a pungent odor: used chiefly in the manufacture of plastics.
- proscenium arch — the arch separating the stage from the auditorium
- pseudepigraphon — any book of the Pseudepigrapha
- pseudo-bohemian — living a wandering or vagabond life, as a Gypsy.
- pseudo-chemical — of, used in, produced by, or concerned with chemistry or chemicals: a chemical formula; chemical agents.
- pseudoarthrosis — a joint formed by fibrous tissue bridging the gap between the two fragments of bone of an old fracture that have not united
- psychedelically — of or noting a mental state characterized by a profound sense of intensified sensory perception, sometimes accompanied by severe perceptual distortion and hallucinations and by extreme feelings of either euphoria or despair.
- psychedelicware — /si:"k*-del"-ik-weir/ [UK] Synonym display hack. See also smoking clover.