a function of thermodynamic variables, as temperature, that represents the internal state of a system that is due to the energies of the molecular constituents of the system. The change in internal energy during a process is equal to the net heat entering the system minus the net work done by the system. Symbol: U.
the thermodynamic property of a system that changes by an amount equal to the work done on the system when it suffers an adiabatic change. It is the sum of the kinetic and potential energies of its constituent atoms, molecules, etc U, E
noun 1. a state of comparative isolation imposed upon certain political dissidents within the former Soviet Union, in which the subject was forced to live in a remote and often unfamiliar place and in which freedom of movement and personal contact with family, friends, and associates were severely restricted.
- Internal field separators
operating system ($IFS) A predefined environment variable in the Unix Bourne shell whose default value is the three-character string containing space, tab and line feed. Any string of one or more of these characters separates the command and each of its arguments in a command line. $IFS also tells the shell’s built-in read command where […]
- Internal fistula
internal fistula n. A fistula that is located between two internal organs.
- Internal fixation
internal fixation n. The stabilization of fractured bony parts by direct fixation to one another with surgical wires, screws, pins, or plates.