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单词 erg
释义

WordReference Random House Unabridged Dictionary of American English © 2024
erg1  (ûrg),USA pronunciation n. [Physics.]
  1. Physicsthe centimeter-gram-second unit of work or energy, equal to the work done by a force of one dyne when its point of application moves through a distance of one centimeter in the direction of the force;
    10-7 joule.
  • Greek érgon work
  • 1870–75

erg2  (erg),USA pronunciation n. [Geol.]
  1. Geologyany vast area covered with sand, as parts of the Sahara Desert.
  • Arabic ’irq
  • French
  • 1870–75

ERG, 
  1. Ophthalmologyelectroretinogram.

erg-, 
  1. var. of ergo- 1 before a vowel:ergodic.

Collins Concise English Dictionary © HarperCollins Publishers::
erg /ɜːɡ/ n
  1. the cgs unit of work or energy. 1 erg is equivalent to 10–7 joule
Etymology: 19th Century: from Greek ergon work
erg /ɜːɡ/ n ( pl ergs, areg)
  1. an area of shifting sand dunes in a desert, esp the Sahara
Etymology: 19th Century: from Arabic `irj
WordReference Random House Unabridged Dictionary of American English © 2024
er•go  (ûrgō, ergō),USA pronunciation conj., adv. 
  1. therefore.
  • Latin
  • 1350–1400

ergo-1 :
  1. a combining form meaning "work'':ergograph.
Also,[esp. before a vowel,] erg-. 
  • combining form representing Greek érgon

ergo-2 :
  1. a combining form of ergot: ergotoxine.
  • French

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