What word means able to work properly while using less energy

asked Feb 21, 2015 139k views

5 votes

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6 votes

A word that means working properly while using less energy: Efficient

GAgnew answered Feb 22, 2015

7.2k points

4 votes

efficient - achieving maximum productivity with little expenes

Sachleen answered Feb 27, 2015

7.8k points

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