15-letter words that end in m
- manorial system — manorialism.
- mare erythraeum — (Red Sea) an area in the southern hemisphere of Mars, appearing as a dark region when viewed telescopically from the earth.
- meadow mushroom — any of various fleshy fungi including the toadstools, puffballs, coral fungi, morels, etc.
- meantone system — a system for tuning keyboard instruments, used before the development of tuning by equal temperament and considered practical only for tonalities of not more than two sharps or flats.
- mechanomorphism — the doctrine that the universe is fully explicable in mechanistic terms.
- medical tourism — tourist travel for the purpose of receiving medical treatment or improving health or fitness: The spiraling cost of healthcare has contributed to the growth of medical tourism. Also called health tourism.
- metropolitanism — of, noting, or characteristic of a metropolis or its inhabitants, especially in culture, sophistication, or in accepting and combining a wide variety of people, ideas, etc.
- michaelmas term — the autumn term at Oxford and Cambridge Universities, the Inns of Court, and some other educational establishments
- microsporangium — a sporangium containing microspores.
- mineral kingdom — minerals collectively.
- mollier diagram — a graph showing the enthalpy of a substance as a function of its entropy when some physical property of the substance, as temperature or pressure, is kept at a specified constant value.
- monoculturalism — The practice of actively preserving a culture to the exclusion of external influences.
- multical system — E-mail: Richard Snodgrass <[email protected]>.
- multilateralism — having several or many sides; many-sided.
- multilingualism — using or able to speak several or many languages with some facility.
- nation of islam — an organization composed chiefly of African Americans, advocating the teachings of Islam and originally favoring the separation of black and white racial groups in the United States: members are known as Black Muslims.
- national anthem — official song of a country
- natural realism — naive realism.
- neo-hegelianism — Hegelianism as modified by various philosophers of the latter half of the 19th century.
- neo-lutheranism — a movement begun in the 19th century in Germany and Scandinavia to revive the orthodox principles, beliefs, and practices of the Lutheran Church.
- neoconservatism — moderate political conservatism espoused or advocated by former liberals or socialists.
- neoisolationism — a revival of isolationism arising from increased anti-Soviet and anti-European sentiment and a reluctance to involve the nation in further political and military commitments abroad.
- neomercantilism — an economic doctrine or policy during the early 20th century that set high tariffs and other import restrictions in order to protect domestic industries.
- neuroepithelium — Embryology. the part of the embryonic ectoderm that gives rise to the nervous system.
- nil desperandum — never despair
- nitrochloroform — chloropicrin.
- no-smoking room — A no-smoking room in a hotel is a room intended for people who do not want to smoke.
- non-equilibrium — a state of rest or balance due to the equal action of opposing forces.
- non-nationalism — spirit or aspirations common to the whole of a nation.
- non-rationalism — the principle or habit of accepting reason as the supreme authority in matters of opinion, belief, or conduct.
- northeast storm — a cyclonic storm that moves northeastward within several hundred miles of the eastern coast of the U.S. and Canada, particularly in fall and winter, its often strong northeast winds causing high seas and coastal damage and bearing rain or snow.
- nothingarianism — Beliefs and practices of a nothingarian.
- nutmeg geranium — a southern African plant, Pelargonium fragrans, of the geranium family, having hairy leaves with scalloped margins and nutmeg-scented clusters of white flowers, of which the two upper petals are veined deep pink.
- nyquist theorem — (communications) A theorem stating that when an analogue waveform is digitised, only the frequencies in the waveform below half the sampling frequency will be recorded. In order to reconstruct (interpolate) a signal from a sequence of samples, sufficient samples must be recorded to capture the peaks and troughs of the original waveform. If a waveform is sampled at less than twice its frequency the reconstructed waveform will effectively contribute only noise. This phenomenon is called "aliasing" (the high frequencies are "under an alias"). This is why the best digital audio is sampled at 44,000 Hz - twice the average upper limit of human hearing. The Nyquist Theorem is not specific to digitised signals (represented by discrete amplitude levels) but applies to any sampled signal (represented by discrete time values), not just sound.
- objective prism — a large prism placed in front of the objective lens or mirror of a telescope, allowing the simultaneous acquisition of the spectra of many stars.
- omnium gatherum — a miscellaneous collection.
- omnium-gatherum — a miscellaneous collection.
- oneirocriticism — the art of interpreting dreams.
- operations room — a room from which all the operations of a military, police, or other disciplined activity are controlled
- opus anglicanum — fine embroidery, esp of church vestments, produced in England c.1200–c.1350; characterized by the rich materials used, esp silver gilt thread
- organomagnesium — pertaining to or noting an organic compound, especially an organic halide, containing magnesium linked to carbon.
- over-enthusiasm — absorbing or controlling possession of the mind by any interest or pursuit; lively interest: He shows marked enthusiasm for his studies.
- oyster mushroom — oyster cap.
- palaeomagnetism — the study of the fossil magnetism in rocks, used to determine the past configurations of the continents and to investigate the past shape and magnitude of the earth's magnetic field
- pan-americanism — the idea or advocacy of a political alliance or union of all the countries of North, Central, and South America.
- pandorae fretum — an area in the southern hemisphere of Mars.
- periodic system — a system of classification of the elements based on the periodic law.
- peruvian balsam — Peru balsam.
- phonocardiogram — the graphic record produced by a phonocardiograph.
- photofluorogram — a recording on photographic film of images produced by a fluoroscopic examination.