[ 'ɛntrəpi ]
1》 Physics a thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system.
2》 (in information theory) a logarithmic measure of the rate of transfer of information in a particular message or language.
entropic -'trɒpɪk adjective
C19: from en- 2 + Gk tropē 'transformation'.