scale

Example: 
He used the lab scale to determine that frog legs are on average heavier than chicken wings.
The Noun Project
http://thenounproject.com/noun/scale/#icon-No331
Photo license: 
CC: Attribution, Commercial Use
Regionalism: 
American
Regional variant: 
Scales
Regional variant: 
British
Full Expression: 
Scientific Instruments: scale
French
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No
Spanish
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No
German
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No
Portuguese
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No

instrument used to measure the weight of an object or a person

Chinese
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No
Italian
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No
Alsacien
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No
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