~ 1 [ ə:g ]
■ noun Physics a unit of work or en~y, equal to the work done by a force of one dyne when its point of application moves one centimetre in the direction of action of the force.
Origin
C19: from Gk ~on 'work'.
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~ 2 [ ə:g ]
■ noun ( plural ~s or areg 'α:rɛg ) an area of shifting sand dunes in the Sahara.
Origin
C19: from Fr., from Arab. ῾irk , ῾~ .