15-letter words containing h, e, y, n
- nonpsychoactive — Not psychoactive.
- north bay shore — a city on S Long Island, in SE New York.
- north yorkshire — a county in NE England. 3208 sq. mi. (8309 sq. km).
- northeastwardly — Towards the northeast.
- northwestwardly — Towards the northwest.
- novokuibyshevsk — a city in the SW Russian Federation in Europe, SW of Kuibyshev.
- nuclear physics — the branch of physics that deals with the behavior, structure, and component parts of atomic nuclei.
- 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.
- null hypothesis — (in the statistical testing of a hypothesis) the hypothesis to be tested.
- 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.
- ocean greyhound — a fast ship, esp a liner
- on the contrary — opposite in nature or character; diametrically or mutually opposed: contrary to fact; contrary propositions.
- one of the boys — If a man is described as one of the boys, he is accepted by a group of male friends who do things that are thought of as typically masculine.
- open your mouth — If you say that someone does not open their mouth, you are emphasizing that they never say anything at all.
- ordinary shares — British. a share of common stock.
- oxyphenbutazone — an anti-inflammatory treatment for arthritis or bursitis
- pachymeningitis — inflammation of the dura mater of the brain and spinal cord
- palaeontography — the branch of palaeontology concerned with the description of fossils
- parenthetically — of, pertaining to, noting, or of the nature of a parenthesis: several unnecessary parenthetic remarks.
- payment holiday — a break taken from paying ( a debt etc) back
- pentaerythritol — a white, crystalline, water-soluble powder, C 5 H 1 2 O 4 , used chiefly in the manufacture of alkyd resins, varnishes, plasticizers, and explosives.
- phenazopyridine — a substance, C 1 1 H 1 2 ClN 5 , used as a lower urinary tract analgesic.
- phenyl valerate — a colorless, slightly water-soluble liquid, C 1 1 H 1 4 O 2 , used chiefly in flavoring and perfumery.
- phenylene group — any of three bivalent, isomeric groups having the formula –C 6 H 4 –, derived from benzene by the removal of two hydrogen atoms.
- phenylhydrazine — a yellow, poisonous liquid or low-melting solid, C 6 H 8 N 2 , used in chemical analysis and organic synthesis.
- 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.
- photosynthesize — to produce carbohydrates by photosynthesis: Plants with light green leaves don't photosynthesize as well as those with darker leaves.
- phrenologically — in a manner relating to phrenology
- physical change — a usually reversible change in the physical properties of a substance, as size or shape: Freezing a liquid is a physical change.
- phytopathogenic — of, possessing the properties of, or relating to a phytopathogen
- platyhelminthes — a phylum of worms having bilateral symmetry and a soft, usually flattened body, comprising the flatworms.
- pneumatotherapy — the use of compressed or rarefied air in treating disease.
- polychlorinated — having multiple chlorine atoms
- polychloroprene — a chloroprene polymer
- polyphloesboean — noisy
- postsynchronize — to add sound, such as dubbing, to a film or video after shooting is completed
- propionaldehyde — a colorless, water-soluble liquid, C 3 H 6 O, having a pungent odor: used chiefly in the manufacture of plastics.
- propylhexedrine — a colorless, adrenergic, water-soluble liquid, C 1 0 H 2 N, used by inhalation as a nasal decongestant.
- psychosynthesis — a theoretical effort to reconcile components of the unconscious, including dreams, with the rest of the personality.
- punch the bundy — to start work
- pyrotechnically — in a pyrotechnical manner
- quantity theory — a theory stating that the general price level varies directly with the quantity of money in circulation and the velocity with which it is circulated, and inversely with the volume of production expressed by the total number of money transactions
- queen's highway — king's highway.
- radiotechnology — the technical application of any form of radiation to industry.
- ranfurly shield — (in New Zealand) the premier rugby trophy, competed for annually by provincial teams
- ray of sunshine — beam of sunlight
- ray-finned fish — any of various bony fishes of the subclass Actinopterygii, having strong slender rays, excluding the coelacanth and lungfish.