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Definition of Protractor
1. Noun. Drafting instrument used to draw or measure angles. 
Generic synonyms: Drafting Instrument
Definition of Protractor
1. n. One who, or that which, protracts, or causes protraction.
Definition of Protractor
1. [n -S]
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1. Noun. Drafting instrument used to draw or measure angles. 
1. n. One who, or that which, protracts, or causes protraction.
1. [n -S]