In thermodynamics, Isolated refers to a system surrounded by a boundary across which neither energy, in the form of work or heat, nor matter, may pass or be exchanged with its surroundings. [1] In this sense, an "isolated system" cannot have any interaction with the surroundings.
See also
● Open
● Closed
References
1. Perrot, Pierre. (1998). A to Z of Thermodynamics (pg. 42). Oxford: Oxford University Press.