Crossword Genius

Joule fraction (3)

Ross

I believe the answer is:

erg

<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">joule fraction</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>

(Other definitions for erg that I've seen before include "Shifting dunes in Sahara" , "shifting sand" , "Unit of work or energy" , "Energy expended" , "What's used to record work" .)

I've seen this clue in the LA Times.
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