21-letter words containing a, n, e, r

thermal decomposition — Thermal decomposition is the process in which a chemical species breaks down when its temperature is increased.
thermal power station — a power station in which heat is converted into electricity
third-party insurance — insurance that compensates for a loss to a party other than the insured for which the insured is liable.
threatening behaviour — intimidation or intentional behaviour that causes another person to fear injury or harm
three-quarter binding — a binding in which the material used for the back extends further over the covers than in half binding.
throw one's hat at it — to give up all hope of getting or achieving something
throw someone a curve — a continuously bending line, without angles.
ticker-tape reception — (mainly in New York) the showering of the motorcade of a distinguished politician, visiting head of state, etc, with ticker tape as a sign of welcome
tide-generating force — the difference between the force of gravity exerted by the moon or the sun on a particle of water in the ocean and that exerted on an equal mass of matter at the centre of the earth. The lunar tide-generating forces are about 2.2 times greater than are the solar ones
to be arrayed against — to be opposed to
to be hard luck on sb — to be unfortunate or unlucky for someone
to be in dire straits — to be in a position of acute difficulty
to bend someone's ear — If you say that someone is bending your ear about something, you mean that they keep talking to you about it because they think it is important; used especially when you are irritated by this.
to box someone's ears — If someone boxes a child's ears, they hit them on the side of their head as a punishment.
to fall into the trap — If someone falls into the trap of doing something, they think or behave in a way which is not wise or sensible.
to feather one's nest — If you say that someone is feathering their nest, you mean that they are getting a lot of money out of something, so that they can lead a comfortable life.
to get into high gear — if people or an activity go into high gear, moves into high gear, etc, people do what they were doing more intensely, or the activity becomes more intense
to have green fingers — If someone has green fingers, they are very good at gardening and their plants grow well.
to have money to burn — If you say that someone has money to burn, you mean that they have more money than they need or that they spend their money on things that you think are unnecessary.
to lay down your life — If someone lays down their life for another person, they die so that the other person can live.
to lay something bare — If you lay something bare, you uncover it completely so that it can then be seen.
to let your hair down — If you let your hair down, you relax completely and enjoy yourself.
to risk life and limb — If someone risks life and limb, they do something very dangerous that may cause them to die or be seriously injured.
to sink without trace — If you say that someone or something sinks without trace or sinks without a trace, you mean that they stop existing or stop being successful very suddenly and completely.
to take your mind off — If something takes your mind off a problem or unpleasant situation, it helps you to forget about it for a while.
topgallant forecastle — a partial weather deck on top of a forecastle superstructure; forecastle deck.
toussaint l'ouverture — François Dominique [frahn-swa dawmee-neek] /frɑ̃ˈswa dɔmiˈnik/ (Show IPA), 1743–1803, Haitian patriot and leader of the Haitian Revolution slave rebellion.
trades union congress — The Trades Union Congress in Britain is the same as the TUC.
traffic control tower — an elevated structure for the visual observation and control of the air and ground traffic at an airport
trans-alaska pipeline — a pipeline system opened in 1977 that transports oil 800 miles (1300 km) across Alaska, from Prudhoe Bay on the North Slope S to Valdez harbor.
transactinide element — any element having an atomic number higher than 103, the last of the actinide series. These superheavy, radioactive elements are extremely short-lived, and can only be created in the laboratory.
transcendental number — a number that is not a root of any algebraic equation having integral coefficients, as π or e .
transformational rule — Linguistics. a rule of transformational grammar that relates two phrase markers in the course of a derivation from the deep to the surface syntactic representation of a sentence, as by reordering, inserting, or deleting elements; a rule that converts deep structures into surface structures.
transport segregation — Transport segregation is when particles from a mixture separate because the mixture vibrates while it is being moved.
traveling salesperson — a representative of a business firm who travels in an assigned territory soliciting orders for a company's services.
trichloronitromethane — chloropicrin.
tripartite and fretty — (of a cross) having the limbs divided into three longitudinal strips each, intermingled in the manner of those in a cross parted and fretty.
trustee in bankruptcy — a person appointed by a court to administer the property of a bankrupt.
tubercular meningitis — an infection of the membranes of the central nervous system caused by the bacterium Mycobacterium tuberculosis; features can include fever, headache, and coma
tumor necrosis factor — a protein, produced in humans and other animals, that is destructive to cells showing abnormally rapid growth: identical with cachectin. Abbreviation: TNF.
turn state's evidence — If someone who is accused of a crime turns state's evidence, they agree to give evidence in a law court against another person such as a former accomplice, usually in exchange for a reduced sentence for themselves.
turn up one's nose at — to sneer at; scorn
ulster unionist party — a Northern Irish political party advocating the maintenance of union with the UK
ultraviolet astronomy — the branch of astronomy that deals with celestial objects emitting electromagnetic radiation in the ultraviolet range.
uncertainty principle — the principle of quantum mechanics, formulated by Heisenberg, that the accurate measurement of one of two related, observable quantities, as position and momentum or energy and time, produces uncertainties in the measurement of the other, such that the product of the uncertainties of both quantities is equal to or greater than h/ 2 π, where h equals Planck's constant.
under one's own steam — If you do something under your own steam, you do it without any help from anyone else.
undesirable discharge — a discharge under other than honorable conditions of a person from military service by administrative action.
uniform business rate — a local tax in the UK paid by businesses, based on a local valuation of their premises and a rate fixed by central government that applies throughout the country
uniform resource name — (web) (URN, previously Uniform/Universal Resource Number) 1. Any URI which is not a URL. 2. A particular scheme which is currently (1991-4) under development by the IETF, which should provide for the resolution using Internet protocols of names which have a greater persistence than that currently associated with Internet host names or organisations (as used in URLs). Uniform Resource Names will be URI schemes that improve on URLs in reliability over time, including authenticity, replication, and high availability. When defined, a URN in sense 1 will be an example of a URN in sense 2.
universal affirmative — a proposition of the form “All S is P.” Symbol: A, a.

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