At grade

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on the same level; - said of the crossing of a railroad with another railroad or a highway, when they are on the same level at the point of crossing.

See also: Grade

References in periodicals archive ?
Students are introduced to the word "AIDS" at the grade 3 level; dirty needles as a cause at grade 4; AIDS activism and transmission through sexual intercourse at grade 6; the homosexual connection at grade 7; AIDS and condom failure at grade 8; transmission by oral and anal sex at the grade 10 level.