15-letter words containing s, e, n, r
- nonprescriptive — that prescribes; giving directions or injunctions: a prescriptive letter from an anxious father.
- nonprofessional — not a member of or trained in a specific profession.
- nonprofessorial — not professorial
- nonrelativistic — not concerned with or involving the theory of relativity
- nonstandardized — Unstandardized.
- nonstereoscopic — Not stereoscopic.
- nontransferable — Not transferable; not able to be transferred.
- normally-closed — Normally-closed switch contacts are in a closed state at rest.
- norman conquest — the conquest of England by the Normans, under William the Conqueror, in 1066.
- north bay shore — a city on S Long Island, in SE New York.
- north las vegas — a city in S Nevada.
- north yorkshire — a county in NE England. 3208 sq. mi. (8309 sq. km).
- north-northeast — the point on the compass midway between north and northeast. Abbreviation: NNE.
- north-northwest — the point on the compass midway between north and northwest. Abbreviation: NNW.
- 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.
- northeasterners — Plural form of northeasterner.
- northeastwardly — Towards the northeast.
- northern lights — aurora borealis.
- northern sennet — any of several small barracudas, as Sphyraena borealis (northern sennet) ranging along the eastern coast of North and Central America.
- northwestwardly — Towards the northwest.
- not be yourself — If you say that you are not yourself, you mean you are not feeling well.
- not necessarily — If you reply 'Not necessarily', you mean that what has just been said or suggested may not be true.
- nottinghamshire — a county in central England. 854 sq. mi. (2210 sq. km).
- nuclear fission — fission (def 2).
- nuclear physics — the branch of physics that deals with the behavior, structure, and component parts of atomic nuclei.
- nuclear testing — the process of carrying out a test on a nuclear weapon to determine effectiveness, etc
- nuisance caller — someone who makes an unsolicited telephone call such as a prank call or a call for telemarketing purposes
- nuisance ground — a garbage dump.
- nursing studies — the study of nursing
- nutty professor — a professor or academic person who is eccentric or slightly crazy or unusual
- 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.
- observation car — a railroad passenger car having a lounge or platform from which the scenery can be viewed.
- observationally — of, relating to, or founded on observation, especially founded on observation rather than experiment.
- obstructiveness — The characteristic of being obstructive.
- obtuse triangle — a triangle with one obtuse angle.
- ocean of storms — the largest of the dark plains (maria) on the surface of the moon, situated in the second and third quadrant
- odoriferousness — The quality of being odoriferous.
- off one's guard — to keep safe from harm or danger; protect; watch over: to guard the ruler.
- offset printing — offset (def 6).
- okhotsk current — a cold ocean current flowing SW from the Bering Sea, E of the Kurile Islands, along the E coast of Japan where it meets the Japan Current.
- old man's beard — fringe tree.
- old-man's-beard — fringe tree.
- oligomerisation — Alternative spelling of oligomerization.
- on a shoestring — If you do something or make something on a shoestring, you do it using very little money.
- on one's honour — on the pledge of one's word or good name
- on one's uppers — higher, as in place, position, pitch, or in a scale: the upper stories of a house; the upper register of a singer's voice.
- on prescription — If a medicine is available on prescription, you can only get it from a chemist or pharmacist if a doctor gives you a prescription for it.
- on short notice — with little warning
- on the decrease — decreasing
- on the increase — growing, increasing