15-letter words containing h, o, p, e, l
- peroxysulphuric — as in peroxysulphuric acid
- personal growth — development as an individual
- petroleum ether — a volatile mixture of the higher alkane hydrocarbons, obtained as a fraction of petroleum and used as a solvent
- pheasant coucal — a brown and black, red-eyed Australian bird, Centropus phasianinus, with a pheasantlike tail.
- phenolphthalein — a white, crystalline compound, C 2 0 H 1 4 O 4 , used as an indicator in acid-base titration and as a laxative.
- phenomenalistic — the doctrine that phenomena are the only objects of knowledge or the only form of reality.
- phenomenologies — the study of phenomena.
- phenomenologist — the study of phenomena.
- phenylene group — any of three bivalent, isomeric groups having the formula –C 6 H 4 –, derived from benzene by the removal of two hydrogen atoms.
- phenylketonuria — an inherited disease due to faulty metabolism of phenylalanine, characterized by phenylketones in the urine and usually first noted by signs of mental retardation in infancy.
- phenylketonuric — an inherited disease due to faulty metabolism of phenylalanine, characterized by phenylketones in the urine and usually first noted by signs of mental retardation in infancy.
- philip the bold — 1342–1404, duke of Burgundy (1363–1404), noted for his courage at Poitiers (1356) in the Hundred Years' War: regent of France for his nephew Charles VI (1368–88, 1392–1404)
- philip the good — 1396–1467, duke of Burgundy 1419–67.
- phlebosclerosis — sclerosis, or hardening, of the walls of veins.
- phloem necrosis — a disease of the American elm caused by a mycoplasmalike organism, characterized by yellowing and necrosis of the foliage and yellowish-brown discoloration of the phloem.
- phoenix islands — a group of eight coral islands in the central Pacific: administratively part of Kiribati. Area: 28 sq km (11 sq miles). The islands and surrounding waters form the Phoenix Islands Protected Area, the world's largest marine protected area. Area: 410 500 sq km (158 500 sq miles)
- phosphorylative — of or relating to phosphorylation
- photodegradable — (of a substance) capable of being broken down by light.
- photoelasticity — the phenomenon of double refraction of polarized light by a transparent substance under elastic stress, used to measure strain in elastic, transparent materials.
- photoelectronic — relating to electronic effects or devices affected by light
- 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.
- photomultiplier — an extremely sensitive detector of light and of other radiation, consisting of a tube in which the electrons released by radiation striking a photocathode are accelerated, greatly amplifying the signal obtainable from small quantities of radiation.
- phototelegraphy — facsimile (def 2a).
- phototheodolite — an optical tracking instrument consisting of a camera and theodolite mounted on a single tripod, used in photogrammetry and in tracking rockets.
- phrenologically — in a manner relating to phrenology
- 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.
- phytochemically — in a phytochemical manner
- phytoflagellate — any microscopic flagellate that is photosynthetic.
- pick-and-shovel — marked by drudgery; laborious: the pick-and-shovel work necessary to get a political campaign underway.
- plain chocolate — dark eating chocolate
- plainclothesman — a police officer, especially a detective, who wears ordinary civilian clothes while on duty.
- 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
- plethysmography — the tracking of changes measured in bodily volume
- poikilothermism — the state or quality of being cold-blooded, as fishes and reptiles.
- polychlorinated — having multiple chlorine atoms
- polychloroprene — a chloroprene polymer
- polyphemus moth — a large, yellowish-brown American silkworm moth, Antheraea polyphemus, having a prominent eyespot on each hind wing and feeding on cherry, apple, and other trees.
- polyphloesboean — noisy
- posthole digger — a tool or device for digging a posthole.
- potash feldspar — any of the feldspar minerals having the composition KAlSi 3 O 8 , as orthoclase.
- propeller shaft — a shaft that transmits power from an engine to a propeller.
- propionaldehyde — a colorless, water-soluble liquid, C 3 H 6 O, having a pungent odor: used chiefly in the manufacture of plastics.
- propyl aldehyde — a colorless, water-soluble liquid, C 3 H 6 O, having a pungent odor: used chiefly in the manufacture of plastics.
- propylhexedrine — a colorless, adrenergic, water-soluble liquid, C 1 0 H 2 N, used by inhalation as a nasal decongestant.
- pseudo-chemical — of, used in, produced by, or concerned with chemistry or chemicals: a chemical formula; chemical agents.
- pseudohexagonal — of, relating to, or having the form of a hexagon.
- pulmobranchiate — possessing a pulmobranch
- push one's luck — the force that seems to operate for good or ill in a person's life, as in shaping circumstances, events, or opportunities: With my luck I'll probably get pneumonia.