protractor
Longman Dictionary of Contemporary English 5++LDOCE 5++pro·trac·tor /prəˈtræktə $ proʊˈtræktər/ noun [countable] 
HMa piece of plastic in the shape of a half-circle, which is used for measuring and drawing angles 量角器，分度规 → set square →5 see picture at 见图 mathematics
HMa piece of plastic in the shape of a half-circle, which is used for measuring and drawing angles 量角器，分度规 → set square →5 see picture at 见图 mathematicsExamples from the Corpus
protractor• Moira screamed and ran away from him, dropping several books and a protractor.• After all, this is the unit used on the protractor that we first came across early in our school careers.pro·trac·tor nounChineseSyllable
shape the of a plastic a in piece Corpus of
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protractor
pro‧trac‧tor /prəˈtræktə $ proʊˈtræktər/
noun [countable]
a piece of plastic in the shape of a half-circle, which is used for measuring and drawing angles ⇨ setsquare
pro‧trac‧tor /prəˈtræktə $ proʊˈtræktər/
noun [countable]a piece of plastic in the shape of a half-circle, which is used for measuring and drawing angles ⇨ setsquare
