熵

熵 U+71B5, 熵 CJK UNIFIED IDEOGRAPH-71B5 ← 熴 [U+71B4] CJK Unified Ideographs 熶 → [U+71B6]

Translingual

Han character

熵 (Kangxi radical 86, 火+11, 15 strokes, cangjie input 火卜金月 (FYCB), four-corner 9082₇, composition ⿰火商)

References

• Kangxi Dictionary: not present, would follow page 681, character 14
• Hanyu Da Zidian (first edition): volume 3, page 2229, character 14
• Unihan data for U+71B5

Chinese

trad.		熵
simp. #		熵

Glyph origin

Ideogrammic compound (會意／会意) and phono-semantic compound (形聲／形声) : semantic 火 (“fire”) + phonetic 商 (shāng, “quotient”)

Coined by Chinese physical scientist Hu Gangfu in 1923 to translate the concept of entropy in thermodynamics, where 商 (shāng, “quotient”) represents the quotient of heat and temperature, and 火 (huǒ, “fire”) represents its relation to thermodynamics.

Pronunciation

• Mandarin

  (Pinyin): shāng (shang¹)

  (Zhuyin): ㄕㄤ

• Cantonese (Jyutping): soeng¹
• Hakka (Sixian, PFS): sông
• Eastern Min (BUC): siŏng
• Southern Min (Hokkien, POJ): siong
• Wu (Wugniu)
  • (Northern): ¹saon

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• Mandarin
  • (Standard Chinese)⁺
    • Hanyu Pinyin: shāng
    • Zhuyin: ㄕㄤ
    • Tongyong Pinyin: shang
    • Wade–Giles: shang¹
    • Yale: shāng
    • Gwoyeu Romatzyh: shang
    • Palladius: шан (šan)
    • Sinological IPA ^(key): /ʂɑŋ⁵⁵/
• Cantonese
  • (Standard Cantonese, Guangzhou–Hong Kong)⁺
    • Jyutping: soeng¹
    • Yale: sēung
    • Cantonese Pinyin: soeng¹
    • Guangdong Romanization: sêng¹
    • Sinological IPA ^(key): /sœːŋ⁵⁵/
• Hakka
  • (Sixian, incl. Miaoli and Meinong)
    • Pha̍k-fa-sṳ: sông
    • Hakka Romanization System: song´
    • Hagfa Pinyim: song¹
    • Sinological IPA: /soŋ²⁴/
• Eastern Min
  • (Fuzhou)
    • Bàng-uâ-cê: siŏng
    • Sinological IPA ^(key): /suoŋ⁵⁵/
• Southern Min
  • (Hokkien)
    • Pe̍h-ōe-jī: siong
    • Tâi-lô: siong
    • Phofsit Daibuun: siofng
    • IPA (Xiamen): /siɔŋ⁴⁴/
    • IPA (Quanzhou): /siɔŋ³³/
    • IPA (Zhangzhou): /siɔŋ⁴⁴/
    • IPA (Taipei): /siɔŋ⁴⁴/
    • IPA (Kaohsiung): /siɔŋ⁴⁴/
• Wu
  • (Shanghai):
    • Wugniu: ¹saon
    • MiniDict: saon^平
    • Wiktionary Romanisation (Shanghai): ¹saan
    • Sinological IPA (Shanghai): /sɑ̃⁵³/

Definitions

熵

1. (physics, information theory, etc.) entropy

Derived terms

• 信息熵 (xìnxī shāng)
• 熵增
• 熵減／熵减
• 資訊熵／资讯熵 (zīxùn shāng)