18-letter words containing e, f, t, n
- mixed-flow turbine — a water turbine in which water flows radially and axially through the rotating vanes
- money of necessity — temporary coinage, as siege pieces, issued in areas where regular coinage is unavailable: sometimes of unusual materials, as leather or wood.
- morning-after pill — a contraceptive pill containing only an estrogen and used by women within a few hours after sexual intercourse.
- negative cash flow — the situation when income is less than payments
- neural tube defect — any of a group of congenital abnormalities involving the brain and spinal cord, including spina bifida and meningocele, caused by failure of the neural tube to close properly during embryonic development.
- new forest disease — an infectious eye disease causing acute eye pain in cattle
- nike of samothrace — a Greek marble statue (c200 b.c.) of Nike found at Samothrace and now in the Louvre, Paris.
- no-fault insurance — Also called no-fault insurance. a form of automobile insurance designed to enable the policyholder in case of an accident to collect a certain basic compensation promptly for economic loss from his or her own insurance company without determination of liability.
- non-fundamentalist — (sometimes initial capital letter) a religious movement characterized by a strict belief in the literal interpretation of religious texts, especially within American Protestantism and Islam.
- non-identification — an act or instance of identifying; the state of being identified.
- non-inertial frame — a frame of reference that moves with the object, so that the moving object appears to violate Newton's laws of motion since it accelerates despite having no horizontal forces on it.
- none the worse for — not harmed by (adverse events or circumstances)
- nonpreferentialism — of, relating to, or of the nature of preference: preferential policies.
- north bedfordshire — a city in Bedfordshire, in central England.
- not in a fit state — If you say that someone is not in a fit state to do something, you mean that they are too upset or ill to do it.
- notifiable disease — any one of a number of infectious diseases of humans and animals, that must be reported to the public health authorities
- nursery facilities — places where young children are looked after
- oath of allegiance — pledge to one's nation
- off-street parking — spaces for cars located on private property rather than on a public street
- offensive material — any published or broadcast content (such as articles, photographs, films, or websites) that is likely to be upsetting, insulting, or objectionable to some or most people
- oil of catechumens — holy oil used in baptism, the ordination of a cleric, the coronation of a sovereign, or in the consecration of a church.
- oil of wintergreen — methyl salicylate.
- old man of the sea — (in The Arabian Nights' Entertainments) an old man who clung to the shoulders of Sindbad the Sailor for many days and nights.
- on the strength of — the quality or state of being strong; bodily or muscular power; vigor.
- once in a lifetime — extremely rarely
- operating software — software used in the operation of a computer system, typically by performing such tasks as memory allocation, job scheduling, and input/output control
- order of magnitude — You can use order of magnitude when you are giving an approximate idea of the amount or importance of something.
- osteitis deformans — Paget's disease.
- out of one's depth — a dimension taken through an object or body of material, usually downward from an upper surface, horizontally inward from an outer surface, or from top to bottom of something regarded as one of several layers.
- out of one's hands — no longer one's responsibility
- out of one's skull — foolish; silly
- out of the running — the act of a person, animal, or thing that runs.
- overdraft interest — interest charged on money withdrawn in excess of the credit balance of a bank or building society account
- overidentification — an act or instance of identifying; the state of being identified.
- patron of the arts — someone who acts as a patron to or supports charities, organizations, and individuals that work in or concern the arts
- pedestrian traffic — the people coming and going on foot in a street, town, etc
- pellitory of spain — a small Mediterranean plant, Anacyclus pyrethrum, the root of which contains an oil formerly used to relieve toothache: family Asteraceae (composites)
- people trafficking — the practice of bringing immigrants into a country illegally
- perceptual defence — the process by which it is thought that certain stimuli are either not perceived or are distorted due to their offensive, unpleasant, or threatening nature
- perfect continuous — perfect progressive.
- perfect contrition — sincere penitence or remorse.
- performance artist — an artist that is involved in a theatrical presentation that incorporates various art forms, such as dance, sculpture, music, etc
- peter and the wolf — a composition by Sergei Prokofiev written in 1936. It is a children's story with both music and text, spoken by a narrator accompanied by the orchestra
- phase-shift keying — (communications) (PSK) A digital modulation scheme that conveys data by changing the phase of a carrier wave. The data can either determine the absolute phase relative to the unmodulated carrier or reference signal ("coherent phase-shift keying", CPSK) or the change in phase ("differential phase-shift keying", DPSK). The number of different phases used determines the amount of data that can be transmitted in each cycle. Each cycle can be considered to constitute one "symbol", e.g. with two possible phases, each cycle carries one bit. The more phases that are used, the less tollerant to noise the transmissions becomes. Alternatives to PSK are amplitude-shift keying (ASK) and frequency-shift keying (FSK).
- phenol coefficient — the number indicating the effectiveness of a disinfectant as a germicide relative to phenol, which is arbitrarily assigned the number 1: based on the time required to kill a given quantity of a specific type of bacteria.
- piecewise function — a function whose definition changes depending on the value of the independent variable
- point of departure — Nautical. the precise location of a vessel, established in order to set a course, especially in beginning a voyage in open water.
- point of no return — Aviation. the point in a flight at which an aircraft will lack sufficient fuel to return to its starting point.
- point of reference — A point of reference is something which you use to help you understand a situation or communicate with someone.
- pontifical college — the chief body of priests in ancient Rome.