单词	protractor
释义	protractor noun pro·​trac·​tor prō-ˈtrak-tər  prə- 1 a : one that protracts b : a muscle that extends a part 2 : an instrument for laying down and measuring angles in drawing and plotting Example Sentences Recent Examples on the Web But come fall, anyone who’s ever bought a school supply—even a chintzy, plastic protractor—might feel a stirring of initiative in their sunburned loins. Wsj Off Duty Editors, WSJ, 10 Sep. 2022 Sebastian bought most of her kids’ supplies — including coloring and craft supplies for her first grader, Bruno, and graph paper and a protractor for her fourth grader, Ophelia — at Target. Talia Soglin, Chicago Tribune, 28 July 2022 But apologies, forgiveness, and reconciliation are not points on a protractor. cleveland, 10 May 2022 But apologies, forgiveness, and reconciliation are not points on a protractor. Amy Dickinson, oregonlive, 10 May 2022 Guns lay on the coffee table, beside a protractor and a jar of beet juice. Rachel Swan, San Francisco Chronicle, 11 Aug. 2021 The defense trumpeted this revelation, but the D.A. called it flawed and stuck by the original protractor-and-eyeball results. Los Angeles Times, 29 June 2021 The fixture's arm is clipped to some nearby object to anchor the protractor dial, which must be returned to zero after the initial torque is applied. Popular Mechanics Editors, Popular Mechanics, 21 May 2021 The fixture's arm is clipped to some nearby object to anchor the protractor dial, which must be returned to zero after the initial torque is applied. Popular Mechanics Editors, Popular Mechanics, 21 May 2021 See More Word History First Known Use circa 1611, in the meaning defined at sense 1a Kids Definition protractor noun pro·​trac·​tor prō-ˈtrak-tər  : an instrument used for drawing and measuring angles Medical Definition protractor noun pro·​trac·​tor -tər  : a muscle that extends a part compare retractor sense b
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