entropy - Master This Word
Master this word with our 5-step learning method – Learn English in English
entropy Word Meanings
- In thermodynamics, entropy is a measure of a system's disorder or randomness.
- In information theory, entropy quantifies the uncertainty or information content of a source.
- Figuratively, entropy describes increasing disorder or chaos in a situation or organization; higher entropy means less predictability.
entropy Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
entropy Phonetic & Pronunciation
UK
/ˈɛn.trə.pi/
US
/ˈɛn.trə.pi/
entropy Word Etymology
Root decomposition: prefix en- (in) + root trop(e) (turn) + suffix -y; History: from Greek entropia 'a turning in', via German Entropie into English entropy, coined by Clausius in 1865; Memory: imagine a sealed jar whose contents become more scattered as energy spreads, illustrating rising disorder.
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputReal Context
Entropy is a central concept in physics and information theory. In thermodynamics, entropy measures how energy is distributed among the microscopic states of a system; higher entropy means more possible arrangements and greater disorder. In information theory, entropy quantifies the uncertainty or expected information content of a source, with more unpredictable messages producing higher entropy. The term is also used metaphorically to describe growing disorder in projects or organizations, where rising entropy signals less predictability and more chaotic conditions. The word was coined by Clausius in 1865, drawing on the Greek entropia, and it has since become a standard measure of randomness across disciplines.
Usage Reminders
- Be precise about context
- Do not equate entropy with energy
- Use thermodynamics for physical systems, information theory for data sources
- Avoid saying entropy means 'messiness' in everyday life
- Note the historical origin in Clausius's work
Common Misconceptions
- Entropy equals disorder in all contexts
- Higher entropy always means more energy
- Entropy can decrease in a closed system
- Entropy is the same as randomness in everyday life
- Information entropy and physical entropy are interchangeable
Thinking Differences
English speakers often think of entropy as plain 'disorder', especially in everyday life, but in science it has a precise statistical meaning. Learners may overgeneralize the everyday sense and misapply it to nonphysical situations.
Learning Tips
- Learn the two main senses (thermodynamics and information theory) separately to avoid cross-context confusion
- Practice converting between a physical system description and a data source description
- Use non-technical metaphors with care to avoid misinterpretation
- Recall Clausius' origin to reinforce spelling and pronunciation
- Compare entropy with related terms like energy, temperature, and randomness
- Read multiple short examples to see how context shifts meaning
5-Step Learning Method - Learn English in English
Step 1: Meaning
What does the word 'entropy' mean?
A.A measure of disorder or randomness in a system.
B.A factor that measures productivity.
C.A concept explaining geographical distribution.
D.A synonym for energy conversion.
Step 2: Usage
Which sentence uses 'entropy' correctly?
A.The company's profits are increasing due to high entropy management.
B.His idea brought a sense of entropy to the well-organized event.
C.As ice melts, the entropy of the system increases.
D.The doctor noticed high entropy levels in the healthy patient's blood.
Step 3: Similar Words
Which of these words is a synonym for 'entropy'?
A.Unity
B.Disorder
C.Harmony
D.Balance
Step 4: Opposite Words
What is the opposite of 'entropy'?
A.Order
B.Chaos
C.Variation
D.Change
Step 5: Mastery
Can you think of a situation where elements in a closed system become more disordered over time?
A.In a perfectly organized office, tasks are regularly completed.
B.A team has a clear plan to achieve their goals.
C.Food left out will eventually rot and decay.
D.An artist carefully arranges colors in a painting.
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