/gray"deuhr/, n.
1. a person or thing that grades.
2. a pupil of a specified grade at school: a fourth grader.
3. a machine for grading.
[1840-50, Amer.; GRADE + -ER1]

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▪ excavation vehicle
      in excavation, precision finishing vehicle for final shaping of surfaces on which pavement will be placed. Between its front and rear wheels a grader carries a broad mechanically or hydraulically controlled blade that can be extended from either side. Either end of the blade can be raised or lowered. Graders may be used for shallow ditching, but most models are used to assist other earth-moving equipment and to smooth roads, fills, and cuts.

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Universalium. 2010.

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Look at other dictionaries:

  • Grader — O K F 156 A älterer, motorloser, gezogen …   Deutsch Wikipedia

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  • grader — ☆ grader [grād′ər ] n. 1. a person or thing that grades 2. a pupil in a (specified) grade at a school [a fifth grader]: sometimes, in compounding, written grader …   English World dictionary

  • Grader — Grad er, n. 1. One who grades, or that by means of which grading is done or facilitated. 2. Specifically: A vehicle used for levelling earth, esp. one with a plow blade suspended from the center, used specifically for grading roads. [PJC] …   The Collaborative International Dictionary of English

  • grader — 1868, of machines; 1870, of persons, agent noun from GRADE (Cf. grade) (v.) …   Etymology dictionary

  • Grader — Modern grader, in foreground A grader, also commonly referred to as a road grader, a blade, a maintainer, or a motor grader, is a construction machine with a long blade used to create a flat surface. Typical models have three axles, with the… …   Wikipedia

  • -grader — [[t] greɪdə(r)[/t]] graders COMB in N COUNT grader combines with words such as first and second to form nouns which refer to a child or young person who is in a particular grade in the American education system. Randy Stillwell is a sixth grader… …   English dictionary

  • grader — noun Date: 1832 1. one that grades 2. a machine for leveling earth 3. a pupil in a school grade < a fifth grader > …   New Collegiate Dictionary

  • grader — noun a) A machine used in construction for flattening large surfaces A first grader. b) One who grades, or that by means of which grading is done or facilitated …   Wiktionary

  • grader — gra·dèr s.m.inv. TS tecn. macchina livellatrice, usata spec. nei lavori stradali {{line}} {{/line}} DATA: sec. XX. ETIMO: dall ingl. grader, der. di (to) grade livellare …   Dizionario italiano

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