19-letter words containing o, p, h, t, a
- late-night shopping — later opening hours of shops than usual, esp as a regular occurrence on a particular night of the week
- leave the door open — a movable, usually solid, barrier for opening and closing an entranceway, cupboard, cabinet, or the like, commonly turning on hinges or sliding in grooves.
- leukoencephalopathy — (medicine) Any disease that effects the white matter of the brain.
- line-of-battle ship — ship of the line.
- lupus erythematosus — any of several autoimmune diseases, especially systemic lupus erythematosus, characterized by red, scaly skin patches.
- lymphoproliferation — (medicine) the excessive production of lymphocytes.
- lymphoproliferative — Characterized by lymphoproliferation.
- magnetic north pole — the point on Earth to where a compass needle points, and which is situated near the geographic North Pole. However, with time, the exact location can vary.
- mayor of the palace — one of a line of hereditary administrative lieutenants to the Merovingian kings who eventually took over royal function and title in the Frankish kingdoms; a palatine.
- meningoencephalitic — Relating to meningoencephalitis.
- meningoencephalitis — Inflammation of the membranes of the brain and the adjoining cerebral tissue.
- metaphosphoric acid — an acid, HPO 3 , derived from phosphorous pentoxide, and containing the smallest amount of water of the phosphoric acids.
- metatarsophalangeal — (anatomy) Relating to the metatarsus and phalange.
- middle palaeolithic — the period between the Lower and the Upper Palaeolithic, usually taken as equivalent to the Mousterian
- military pentathlon — an athletic contest comprising five different events, a 300-meter freestyle swim, a 4000-meter cross-country run, a 5000-meter equestrian steeplechase, épée fencing, and pistol target-shooting at 25 meters, the winner being the contestant with the highest total score.
- molar heat capacity — the heat capacity of one mole of a substance.
- mother-in-law plant — a West Indian foliage plant, Dieffenbachia seguine, of the arum family, having yellow-blotched leaves that cause temporary speechlessness when chewed.
- multiplexor channel — (MPX) mainframe terminology for a slow peripheral device connection, e.g. for a printer, operator console, or card reader.
- napierian logarithm — natural logarithm.
- natural catastrophe — A natural catastrophe is an unexpected event, caused by nature, such as an earthquake or flood, in which there is a lot of suffering, damage, or death.
- neuropathologically — In a neuropathologic way.
- nonplayer character — a character in a tabletop role-playing game who is controlled by the Game Master.
- north new hyde park — a town on W Long Island, in SE New York.
- north pacific ocean — the northern part of the Pacific Ocean, extending from the equator to the Arctic Ocean.
- not worth a crumpet — utterly worthless
- occupational hazard — a danger or hazard to workers that is inherent in a particular occupation: Silicosis is an occupational hazard of miners.
- occupational health — Occupational health is the branch of medicine that deals with the health of people in their workplace or in relation to their job.
- old english pattern — a spoon pattern having a stem curving backward at the end.
- old spanish customs — irregular practices among a group of workers to gain increased financial allowances, reduced working hours, etc
- on an empty stomach — If you do something on an empty stomach, you do it without having eaten.
- open the floodgates — If events open the floodgates to something, they make it possible for that thing to happen much more often or much more seriously than before.
- open-hearth furnace — a process of steelmaking in which the charge is laid in a furnace (open-hearth furnace) on a shallow hearth and heated directly by burning gas as well as radiatively by the furnace walls.
- open-hearth process — a process of steelmaking in which the charge is laid in a furnace (open-hearth furnace) on a shallow hearth and heated directly by burning gas as well as radiatively by the furnace walls.
- operations research — the analysis, usually involving mathematical treatment, of a process, problem, or operation to determine its purpose and effectiveness and to gain maximum efficiency.
- orthopaedic surgeon — a surgeon specializing in the branch of surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
- orthopaedic surgery — surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
- overhead projection — the projection (using an overhead projector) of an enlarged image of a transparency onto a surface above and behind the person using it
- palaeoethnobotanist — someone who studies fossil seeds and grains to further archaeological knowledge, esp of the domestication of cereals
- paleoanthropologist — the study of the origins and predecessors of the present human species, using fossils and other remains.
- parasympathomimetic — having an effect similar to that produced when the parasympathetic nervous system is stimulated
- parathyroid extract — an aqueous preparation obtained from the parathyroid gland of cattle, used in medicine chiefly in cases of parathyroid deficiency and in veterinary medicine in the treatment of tetanic convulsions.
- parathyroid hormone — a polypeptide hormone, produced in the parathyroid glands, that helps regulate the blood levels of calcium and phosphate. Abbreviation: PTH.
- parthenogenetically — development of an egg without fertilization.
- particle technology — Particle technology is knowledge and study which relates to particles, and is used in industry.
- parting of the ways — When there is a parting of the ways, two or more people or groups of people stop working together or travelling together.
- paumotu archipelago — Tuamotu Archipelago.
- phacoemulsification — the removal of a cataract by first liquefying the affected lens with ultrasonic vibrations and then extracting it by suction.
- phakoemulsification — the removal of a cataract by first liquefying the affected lens with ultrasonic vibrations and then extracting it by suction.
- phenanthrenequinone — a yellowish-orange, crystalline, water-insoluble solid, C 1 4 H 8 O 2 , used chiefly in organic synthesis and the manufacture of dyes.
- phenylethyl alcohol — phenethyl alcohol.