(Latin: to perform, to execute, to discharge; performance, service, execution)
2. The energy required to raise an electron with the Fermi energy (average energy of electrons in a metal) in a solid to the energy level of an inactive electron in a vacuum outside the solid.
The term Fermi energy is named after Enrico Fermi (1901-1954), an Italian nuclear physicist and refers to the level in the distribution of electron energies in a solid at which a quantum state is equally likely to be occupied or empty.
2. An activity or role assigned to someone or something: "The function of a lawyer is to advise a client of his legal rights."
3. A social gathering or ceremony; especially, a formal or official occasion: "There are many functions that the head of a state must attend."
4. A quality or characteristic that depends upon and varies with another quality.
5. The action or purpose performed by an organ, part, or substance of the body: "It is the function of the heart to pump blood through the body's system."
6. The characteristic action of a compound due to its composition or structure.
7. Etymology: from Middle French fonction, from Old French function, from Latin functio, functionis, "performance, execution"; from functus, past participle of fungi, "perform, execute, discharge".
"A clock or watch functions as a means of keeping time."
"An overcoat functions as a way to keep warmer in cold weather."
2. In good working order or working at the moment.
3. Without apparent organic or structural cause; such as, functional disorder.
A functional illiterate can also be a foreigner who is not able to read or write in the native language where he or she lives.
2. Any philosophy or system that gives practical and utilitarian concerns priority over aesthetic concerns.
3. Any doctrine that stresses utility or purpose.
4. The analysis and explanation of social institutions according to the function they perform in society; for example, the family is seen as an institution for social stability and cohesion.
Functionalism is one of the early schools of psychological thought which took as the proper subject matter for psychological study those mental processes or chains of actions that demonstrate a usefulness in the adjustment of the organism to its environment.
The principles of functionalism have been absorbed into the main themes of contemporary psychology.
2. A reference to functionalism.
3. Built or made according to the principles of functionalism by someone who is associated with the movement.
2. A useful function within a computer application or program.
3. The capacity of a computer program or application to provide a useful function.
2. Having or serving a utilitarian purpose.
3. Capable of serving the purpose for which has been designed.
2. A person who functions in a specified capacity; especially, in government service; an official: civil servants, bureaucrats, and other functionaries.
3. Anyone who holds an office or a trust or who performs a particular function; such as, an official.
2. Performing or able to perform a regular function.