isentropic adjective & noun. [ʌɪsɛn'trɒpɪk] L19.
[from ISO- + ENTROPIC.]
Physics.
A. adjective. Of equal entropy; (of a line in a diagram) joining points representing successive states of a system in which the entropy remains constant; (of a process) involving no change in entropy. L19.
b. noun. An isentropic line. L19.

■ isentropically adverb without change in entropy M20.

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