grader

Definition

A machine used in road maintenance, construction, and mining for leveling large surfaces.

Etymology

From grade + -er (agent noun suffix) or + -er (measurement suffix) (sense 4).

Example Sentences

• "The blade-grader is a long steel-framed carriage under which is fixed a steel blade capable of being tilted at various angles: its principal use is in trimming cutting-slopes."
• "the graders of a school examination"
• "a first-grader"

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