PROTRACTER
Source: 566, 567
protracter. Protracter, n. one who protracts, an instrument for laying down angles on paper, &c.
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Pro‐tract″er (?), n. A protractor.
Source: 566, 567
protracter. Protracter, n. one who protracts, an instrument for laying down angles on paper, &c.
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Pro‐tract″er (?), n. A protractor.