名詞 entropy:

1. (communication theory) a numerical measure of the uncertainty of an outcome
   同義詞：information, selective information
2. (thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work
   同義詞：randomness, S

en.tro.py

n.（名詞）
【復數】 en.tro.pies
Symbol S For a closed thermodynamic system, a quantitative measure of the amount of thermal energy not available to do work.
符號 S 熵：在封閉的熱力體系中不能做功的一定數量的熱能的計量單位
A measure of the disorder or randomness in a closed system.
隨機計量單位：在封閉體系中對無序和隨機的計量單位
A measure of the loss of information in a transmitted message.
轉送信息缺損值：在轉送信息中的信息缺損值
A hypothetical tendency for all matter and energy in the universe to evolve toward a state of inert uniformity.
退降：宇宙中物質和能量降值惰性均勻狀態(tài)的一種假設性趨勢
Inevitable and steady deterioration of a system or society.
惡化，敗壞：系統或社會不可避免的無法逆轉的惡化或敗壞

來源：
German Entropie
德語 Entropie
Greek en- [in] * see en- 2
希臘語 en- [在…里] *參見 en-2
Greek tropô [transformation] * see trep-
希臘語 tropô [變形] *參見 trep-

【引伸】
entro.pic
entro.pically
adv.（副詞）