18-letter words containing s, e, i, t
- drainpipe trousers — trousers with very narrow legs
- dressing table set — a set including a hairbrush, mirror and comb, often with silver backs
- driver's education — high-school driving classes
- drug-eluting stent — A drug-eluting stent is a tube placed into a blocked artery that slowly releases a drug to prevent another blockage in the artery.
- duty-free shopping — the making of duty-free purchases
- dwarf storage unit — (humour) (DSU) An IBM term for a cupboard.
- dysfunctionalities — Plural form of dysfunctionality.
- dysthymic disorder — a psychiatric disorder characterized by generalized depression that lasts for at least a year
- east india company — the company chartered by the English government in 1600 to carry on trade in the East Indies: dissolved in 1874.
- east indian walnut — lebbek.
- eastern algonquian — a subgroup of the Algonquian language family, comprising the languages spoken aboriginally from Nova Scotia to northeastern North Carolina.
- eastern hemisphere — the eastern part of the terrestrial globe, including Asia, Africa, Australia, and Europe.
- economic sanctions — any actions taken by one nation or group of nations to harm the economy of another nation or group, often to force a political change
- ecosystem services — the important benefits for human beings that arise from healthily functioning ecosystems, notably production of oxygen, soil genesis, and water detoxification
- eigendecomposition — (linear algebra) The factorization of a matrix into a canonical form, whereby the matrix is represented in terms of its eigenvalues and eigenvectors.
- eleanor of castile — 1246–90, Spanish wife of Edward I of England. Eleanor Crosses were erected at each place at which her body rested between Nottingham, where she died, and London, where she is buried
- electoral district — an area that is considered as unit for the purposes of an election
- electoral register — An electoral register is an official list of all the people who have the right to vote in an election.
- electric discharge — electricity emitted
- electricity strike — a time when workers at an electricity company stop supplying power as a protest at working conditions
- electrocardiograms — Plural form of electrocardiogram.
- electrodesiccation — The drying of tissue, and the prevention of bleeding, using a high-frequency electric current.
- electroluminescent — Having the quality of electroluminescence.
- electroretinograms — Plural form of electroretinogram.
- electrostatic lens — an electron lens consisting of a system of metal electrodes, the electrostatic field of which focuses the charged particles
- electrostatic unit — any unit that belongs to a system of electrical cgs units in which the electric constant is given the value of unity and is taken as a pure number
- elizabethan sonnet — Shakespearean sonnet
- employment service — (in the United States) a government department established to collect and supply to the unemployed information about job vacancies and to employers information about availability of prospective workers
- enantioselectivity — (chemistry) The selectivity of a reaction towards one of a pair of enantiomers.
- energy consumption — amount of energy used
- entrepreneurialism — The spirit or state of acting in an entrepreneurial manner.
- entry requirements — the types and grades of examination required to enter a university
- epstein-barr virus — a virus belonging to the herpes family that causes infectious mononucleosis; it is also implicated in the development of Burkitt's lymphoma and Hodgkin's disease
- equinoctial spring — either of the two highest spring tides that occur at the equinoxes
- eraser stains code — (humour, programming) Code that has been refactored many times, leaving swaths of legacy code and design; like paper that has been written on and erased so many times that the pencil marks are no longer the problem - the large greasy stain is.
- escape sb's notice — If something escapes your notice, you fail to recognize it or realize it.
- essence of violets — an alcoholic solution derived from violets, used as perfume
- established church — a Church that is officially recognized as a national institution, esp the Church of England
- establishmentarian — Adhering to, advocating, or relating to the principle of an established church.
- ethical investment — an investment in a company whose activities or products are not considered by the investor to be unethical
- ethnomethodologist — A person engaged in ethnomethodology.
- ethnomusicological — Relating to or pertaining to ethnomusicology.
- ethnopsychological — Relating to ethnopsychology.
- euclid's algorithm — (algorithm) (Or "Euclidean Algorithm") An algorithm for finding the greatest common divisor (GCD) of two numbers. It relies on the identity gcd(a, b) = gcd(a-b, b) To find the GCD of two numbers by this algorithm, repeatedly replace the larger by subtracting the smaller from it until the two numbers are equal. E.g. 132, 168 -> 132, 36 -> 96, 36 -> 60, 36 -> 24, 36 -> 24, 12 -> 12, 12 so the GCD of 132 and 168 is 12. This algorithm requires only subtraction and comparison operations but can take a number of steps proportional to the difference between the initial numbers (e.g. gcd(1, 1001) will take 1000 steps).
- evapotranspiration — The process by which water is transferred from the land to the atmosphere by evaporation from the soil and other surfaces and by transpiration from plants.
- evolution strategy — (ES) A kind of evolutionary algorithm where individuals (potential solutions) are encoded by a set of real-valued "object variables" (the individual's "genome"). For each object variable an individual also has a "strategy variable" which determines the degree of mutation to be applied to the corresponding object variable. The strategy variables also mutate, allowing the rate of mutation of the object variables to vary. An ES is characterised by the population size, the number of offspring produced in each generation and whether the new population is selected from parents and offspring or only from the offspring. ES were invented in 1963 by Ingo Rechenberg, Hans-Paul Schwefel at the Technical University of Berlin (TUB) while searching for the optimal shapes of bodies in a flow.
- examination script — a script with answers written on it by an examination candidate taking a written examination
- excess profits tax — a tax on profits exceeding a certain amount
- exclusive brethren — one of the two main divisions of the Plymouth Brethren, which, in contrast to the Open Brethren, restricts its members' contacts with those outside the sect
- executive decision — a decision made by a person or group that has executive power