15-letter words containing i, t, h, u, n
- mount suribachi — a volcanic hill in the Volcano Islands, on Iwo Jima: site of a US victory (1945) over the Japanese in World War II
- mouthwateringly — In a mouthwatering manner.
- multi-channeled — the bed of a stream, river, or other waterway.
- multiwavelength — Involving, or composed of, multiple wavelengths.
- naismith's rule — a rule of thumb for calculating the time needed for a climbing expedition, allowing 1 hour for every 3 miles of distance plus 1 hour for every 2000 feet of height
- national church — an independent church within a country, usually representing the prevalent religion.
- natural english — Programming in normal, spoken English. [Sammet 1969, p.768].
- natural history — the sciences, as botany, mineralogy, or zoology, dealing with the study of all objects in nature: used especially in reference to the beginnings of these sciences in former times.
- natural varnish — a preparation consisting of resinous matter, as copal or lac, dissolved in an oil (oil varnish) or in alcohol (spirit varnish) or other volatile liquid. When applied to the surface of wood, metal, etc., it dries and leaves a hard, more or less glossy, usually transparent coating.
- 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.
- neuroepithelial — Of or relating to the neuroepithelium.
- neuroepithelium — Embryology. the part of the embryonic ectoderm that gives rise to the nervous system.
- neuropathically — In a neuropathic way.
- neuropathologic — Of or pertaining to neuropathology.
- neuroprosthesis — A prosthesis used to improve the function of an impaired nervous system.
- neuropsychiatry — the branch of medicine dealing with diseases involving the mind and nervous system.
- non-exhaustible — to drain of strength or energy, wear out, or fatigue greatly, as a person: I have exhausted myself working.
- nonarchitecture — a building not designed according to accepted modes of architecture
- north australia — a former division of Australia; now part of the Northern Territory.
- north caucasian — a language family including all the Caucasian languages north of the Caucasian divide, as Kabardian and the Circassian language proper, and a few between the divide and the Black Sea, as Abkhazian.
- northern paiute — a member of an American Indian people of Nevada, Oregon, and California, allied to the Paiute.
- not turn a hair — any of the numerous fine, usually cylindrical, keratinous filaments growing from the skin of humans and animals; a pilus.
- nucleophilicity — (uncountable) The condition of being nucleophilic.
- nucleosynthesis — the formation of new atomic nuclei by nuclear reactions, thought to occur in the interiors of stars and in the early stages of development of the universe.
- nucleosynthetic — Of or pertaining to nucleosynthesis.
- nuke the fridge — (of a film, etc.) to lose credibility following a particularly ill-judged scene or plot development
- null hypothesis — (in the statistical testing of a hypothesis) the hypothesis to be tested.
- nutcracker chin — a strong-looking chin
- 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.
- occulting light — a beacon having a light covered briefly at regular intervals.
- omnium gatherum — a miscellaneous collection.
- omnium-gatherum — a miscellaneous collection.
- on the qui vive — on the qui vive, on the alert; watchful: Special guards were on the qui vive for trespassers.
- opisthognathous — having receding jaws.
- ornithorhynchus — the platypus.
- ortho-toluidine — Chemistry. a light-yellow, very slightly water-soluble liquid, C 7 H 9 N, the ortho isomer of toluidine: used in the manufacture of dyes, saccharin, and other organic compounds, and in textile printing processes.
- out in the cold — having a relatively low temperature; having little or no warmth: cold water; a cold day.
- out in the open — knowledge: public
- out of thin air — suddenly and unexpectedly
- outdoorsmanship — a person devoted to outdoor sports and recreational activities, as hiking, hunting, fishing, or camping.
- over-enthusiasm — absorbing or controlling possession of the mind by any interest or pursuit; lively interest: He shows marked enthusiasm for his studies.
- phantom circuit — a circuit derived from two suitably arranged pairs of wires, each pair being a circuit (side circuit) and also acting as one half of an additional derived circuit, the entire system providing the capabilities of three circuits while requiring wires for only two.
- 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.
- phonautographic — relating to a phonautograph or a piece of equipment that records sound visually by detecting the sound waves and indicating them on a graph
- photoconducting — of or relating to photoconduction
- photoconduction — of, relating to, or exhibiting photoconductivity.
- photoconductive — of, relating to, or exhibiting photoconductivity.
- photojournalism — journalism in which photography dominates written copy, as in certain magazines.
- photoproduction — the light-induced production of a species of molecule such as a radical or ion