19-letter words containing p, a, r, t, y
- hepatoportal system — a vascular arrangement in vertebrates through which blood is transported into the liver from capillaries of the stomach, spleen, duodenum, pancreas, and intestines.
- heptachlorobiphenyl — (organic compound) Either of twenty-four isomers of the polychlorinated biphenyl containing seven chlorine atoms.
- highways department — the department of a state, council, etc, responsible for the upkeep of roads and highways
- historiographically — In a historiographical manner; by means of a historiography.
- hydropneumatization — utilization of air pressure in the housing of a water turbine to keep the level of water that has been used from rising to interfere with the rotor blades.
- hyper-nationalistic — a person devoted to nationalism.
- hyperbolic cosecant — a hyperbolic function that is the reciprocal of hyperbolic sine
- hypercholesteraemia — (medicine) An abnormally high level of cholesterol in the blood.
- hyperfocal distance — the distance, at a given f number, between a camera lens and the nearest point (hyperfocal point) having satisfactory definition when focused at infinity.
- hyperparathyroidism — overactivity of the parathyroid gland, characterized by softening of the bones, with consequent pain, tenderness, and a tendency to spontaneous fractures, and by muscular weakness and abdominal cramps.
- hyperphosphorylated — Simple past tense and past participle of hyperphosphorylate.
- hypocholesterolemia — an abnormally low amount of cholesterol in the blood.
- hypolipoproteinemia — An abnormally low level of lipoprotein in the blood.
- hysterosalpingogram — An X-ray image taken during hysterosalpingography.
- impressionistically — In an impressionistic manner.
- industrial capacity — the amount of resources (workforce, factories, etc) present in a place that will enable an industry or industries to produce goods
- infantile paralysis — poliomyelitis.
- inflationary spiral — Geometry. a plane curve generated by a point moving around a fixed point while constantly receding from or approaching it.
- instant photography — photography using an instant camera.
- intangible property — intellectual property, rights ownership
- interdepartmentally — involving or existing between two or more departments: interdepartmental rivalry.
- interdisciplinarity — Any academic or scientific study that draws on the expertise of more than one discipline.
- isobutyl propionate — a colorless liquid, C 7 H 14 O 2 , used chiefly as a paint, varnish, and lacquer solvent.
- keep an eye out for — the organ of sight, in vertebrates typically one of a pair of spherical bodies contained in an orbit of the skull and in humans appearing externally as a dense, white, curved membrane, or sclera, surrounding a circular, colored portion, or iris, that is covered by a clear, curved membrane, or cornea, and in the center of which is an opening, or pupil, through which light passes to the retina.
- kirlian photography — a photographic process that supposedly records electrical discharges naturally emanating from living objects, producing an auralike glow surrounding the object on a photographic plate or film with which the object is in direct contact.
- land of opportunity — Arkansas (used as a nickname).
- longitudinal parity — (storage, communications) An extra byte (or word) appended to a block of data in order to reveal corruption of the data. Bit n of this byte indicates whether there was an even or odd number of "1" bits in bit position n of the bytes in the block. The parity byte is computed by XORing the data bytes in the block. Longitudinal parity allows single bit errors to be detected.
- 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.
- 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.
- metropolitan county — (in England) any of the six conurbations established as administrative units in the new local government system in 1974; the metropolitan county councils were abolished in 1986
- midafternoon prayer — the fifth of the seven canonical hours; none
- 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.
- missionary position — a position for sexual intercourse in which the couple lies face to face with the male on top.
- molar heat capacity — the heat capacity of one mole of a substance.
- multiple-entry visa — a visa that permits the holder to enter a country several times
- nasty piece of work — malicious person
- neuropathologically — In a neuropathologic way.
- nine plus two array — the arrangement of microtubules in a flagellum or cilium, consisting of a ring of nine evenly spaced couplets surrounding two central singlets. Symbol: 9 + 2.
- nonplayer character — a character in a tabletop role-playing game who is controlled by the Game Master.
- nonproprietary drug — A nonproprietary drug is a generic drug that is essentially similar to a drug with a brand name.
- north new hyde park — a town on W Long Island, in SE New York.
- orthopaedic surgery — surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
- palomar observatory — an astronomical observatory situated on Palomar Mountain in S California, having a 200-inch (508-cm) reflecting telescope and a 48-inch (122-cm) Schmidt telescope.
- 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.
- parliamentary agent — (in Britain) a person who is employed to manage the parliamentary business of a private group
- parthenogenetically — development of an egg without fertilization.