18-letter words starting with e
- 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
- exchange programme — an arrangement in which people from different countries visit each other's country, perhaps to strengthen links between them or to improve foreign language skills
- 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
- executable content — (operating system) Executable programs sent by one computer to another via a network. For example a Java applet is executable content. Usage: rare.
- executive chairman — the most senior internal position within a company, combining the duties of chairman and chief executive
- executive decision — a decision made by a person or group that has executive power
- executive director — a member of the board of directors of a company who is also an employee (usually full-time) of that company and who often has a specified area of responsibility, such as finance or production
- executive producer — a producer of a film or television programme who is involved with business or technical issues rather than the technical aspects of film or television production
- exercise equipment — equipment that can be used for exercising, such as tread mills, rowing machines, etc
- exercise programme — a programme detailing a range of physical exercises and the amount of time each exercise should be performed, used especially in gymnasiums, where they are typically tailored to individuals' needs
- exhaustive testing — (programming) Executing a program with all possible combinations of inputs or values for program variables.
- exhibition killing — the murder of a hostage by terrorists, filmed for broadcasting on television or the internet
- expected frequency — the number of occasions on which an event may be presumed to occur on average in a given number of trials
- expressionlessness — The state of being without an expression.
- extemporaneousness — The degree or property of being extemporaneous.
- extermination camp — a camp where people are imprisoned and killed
- eyeball to eyeball — If you are eyeball to eyeball with someone, you are in their presence and involved in a meeting, dispute, or contest with them. You can also talk about having an eyeball to eyeball meeting or confrontation.
- eyewitness account — a description given by someone who was present at an event