Gradient

(gra'de-ent.) [From L. gradiens, advancing by succe ive paces.] (Civ. Engin.) On railways, an inclined plane, or the proportional degree of ascent or descent of any portion of the line, other than a strict level; thus, an inclined plane, 4 m. long, with a total fall of 84ft., is said to have a G. of 21 ft. in the mile. [s. 418]