19-letter words containing o, h, m, i
- metaphosphoric acid — an acid, HPO 3 , derived from phosphorous pentoxide, and containing the smallest amount of water of the phosphoric acids.
- micromesh stockings — stockings made from a material consisting of a fine mesh
- middle palaeolithic — the period between the Lower and the Upper Palaeolithic, usually taken as equivalent to the Mousterian
- midnight regulation — a rule or directive approved by the federal government near the end of a president’s term of office
- 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.
- minimum thermometer — a thermometer designed to show the lowest temperature recorded between resettings.
- minor seventh chord — a chord consisting of a minor triad with an added minor seventh above the root
- mischaracterization — The act of characterizing something in an inaccurate or misleading way.
- missouri meerschaum — corncob (def 2).
- mohammed ali jinnah — Mohammed Ali ("Quaid-i-Azam") 1876–1948, Muslim leader in India: first governor general of Pakistan 1947–48.
- mohammed zahir shah — 1914–2007, king of Afghanistan 1933–73.
- molar heat capacity — the heat capacity of one mole of a substance.
- month in, month out — every month
- moses-in-the-cradle — a plant, Rhoeo spathacea, native to the West Indies and Central America, having leaves with purple undersides and white flowers enclosed in a boat-shaped envelope formed by two bracts.
- 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.
- motivation research — the application of the knowledge and techniques of the social sciences, especially psychology and sociology, to understanding consumer attitudes and behavior: used as a guide in advertising and marketing.
- mountain chinchilla — any of several long-tailed rodents of the genus Lagidium, having coarse poor quality fur
- mouse-ear chickweed — any of various similar and related plants of the genus Cerastium
- mucopolysaccharides — Plural form of mucopolysaccharide.
- multinomial theorem — an expression of a power of a sum in terms of powers of the addends, a generalization of the binomial theorem.
- multiplexor channel — (MPX) mainframe terminology for a slow peripheral device connection, e.g. for a printer, operator console, or card reader.
- mushroom ventilator — a ventilator having at the top of a vertical shaft a broad rounded cap that can be screwed down to close it.
- nail polish remover — solvent for removing nail polish
- napierian logarithm — natural logarithm.
- neuropsychodynamics — The theoretical synthesis of neuroscience and psychodynamics.
- newtonian mechanics — the branch of mechanics that is based on Newton's laws of motion and that is applicable to systems that are so large that Planck's constant can be regarded as negligibly small (distinguished from quantum mechanics).
- niccolo machiavelli — Niccolò di Bernardo [neek-kaw-law dee ber-nahr-daw] /ˌnik kɔˈlɔ di bɛrˈnɑr dɔ/ (Show IPA), 1469–1527, Italian statesman, political philosopher, and author.
- nonthrombocytopenic — Not thrombocytopenic.
- northern hemisphere — the half of the earth between the North Pole and the equator.
- old spanish customs — irregular practices among a group of workers to gain increased financial allowances, reduced working hours, etc
- oriental fruit moth — a moth, Grapholitha molesta, introduced into the U.S. from Asia, the larvae of which infest and feed on the twigs and fruits of peach, plum, and related trees.
- parasympathomimetic — having an effect similar to that produced when the parasympathetic nervous system is stimulated
- parathyroid hormone — a polypeptide hormone, produced in the parathyroid glands, that helps regulate the blood levels of calcium and phosphate. Abbreviation: PTH.
- 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.
- phenylpropanolamine — a substance, C 9 H 1 3 NO, related to ephedrine and amphetamine, available in various popular nonprescription diet aids as an appetite suppressant.
- phenylthiocarbamide — a crystalline, slightly water-soluble solid, C 6 H 5 NHCSNH 2 , that is either tasteless or bitter, depending upon the heredity of the taster, and is used in medical genetics and as a diagnostic.
- philippine mahogany — any of several Philippine trees of the genus Shorea and related genera, having brown or reddish wood used as lumber and in cabinetry.
- photoelectric meter — an exposure meter using a photocell for the measurement of light intensity.
- photographic memory — total recall
- photopolymerization — polymerization induced by light.
- pistachio ice cream — ice cream flavoured with pistachios
- potassium hydroxide — a white, deliquescent, water-soluble solid, KOH, usually in the form of lumps, sticks, or pellets, that upon solution in water generates heat: used chiefly in the manufacture of soap, as a laboratory reagent, and as a caustic.
- potassium phosphate — any of the three orthophosphates of potassium ((potassium monophosphate) (K 2 HPO 4), (potassium diphosphate) (KH 2 PO 4), and (tripotassium phosphate) (K 3 PO 4) )
- primitive methodist — a member of a Protestant denomination (Primitive Methodist Church) founded in England in 1812 and later established in the U.S., characterized by its adherence to the basic doctrines, principles, and practices taught by John Wesley.
- programmer's switch — (hardware) A button on the front of some Apple Macintosh computers which, when pressed, causes a command line prompt to appear. This gives access to the built-in mini-debugger, which has commands to dump memory, return to the application that was broken out, and others. A more sophisticated debugger must be installed in order to inspect breakpoints, etc.
- pseudohermaphrodite — an individual having internal reproductive organs of one sex and external sexual characteristics resembling those of the other sex or being ambiguous in nature. Compare hermaphrodite (def 1).
- psychrometric chart — a chart for calculating values of relative humidity, absolute humidity, and dew point from psychrometer readings.
- radiochromatography — chromatography in which radiolabeled substances on the chromatogram are determined quantitatively or qualitatively by measuring their radioactivity.